Wireless ad hoc network antenna array with dual modes of omnidirectional beam and directional self-tracking beam

文档序号:911022 发布日期:2021-02-26 浏览:6次 中文

阅读说明:本技术 全向波束和定向自跟踪波束双模式的无线自组网天线阵列 (Wireless ad hoc network antenna array with dual modes of omnidirectional beam and directional self-tracking beam ) 是由 林沂 付云起 王延正 于 2020-11-09 设计创作,主要内容包括:本申请涉及一种全向波束和定向自跟踪波束双模式的无线自组网天线阵列。所述天线阵列的结构为柱形共形天线阵列,包括多个双极化天线单元以及对应设置的模式切换开关。接收信号时,通过模式切换开关将天线阵列的工作模式切换为全向波束模式,使天线阵列的空间方向图为全向波束。发射信号时,通过模式切换开关将天线阵列的工作模式切换为定向自跟踪波束模式,使天线阵列的空间方向图与接收到的导引信号的方向一致。上述天线阵列能够满足无线自组网通信对收发天线的要求,接收信号时能提高信号信噪比,发射信号时不需要进行全空域波束扫描,不需要计算和调整天线阵列的激励幅度、相位,可缩短通信链接建立时间,提高组网和信号传输的实时性。(The application relates to a wireless ad hoc network antenna array with dual modes of omnidirectional beams and directional self-tracking beams. The antenna array is a cylindrical conformal antenna array and comprises a plurality of dual-polarized antenna units and correspondingly arranged mode switch switches. When receiving signals, the mode switch switches the working mode of the antenna array to the omnidirectional beam mode, so that the space directional diagram of the antenna array is an omnidirectional beam. When the signal is transmitted, the mode switch switches the working mode of the antenna array to the directional self-tracking beam mode, so that the spatial directional diagram of the antenna array is consistent with the direction of the received guide signal. The antenna array can meet the requirements of wireless ad hoc network communication on receiving and transmitting antennas, the signal to noise ratio of signals can be improved when the signals are received, full airspace beam scanning is not needed when the signals are transmitted, the excitation amplitude and the phase of the antenna array do not need to be calculated and adjusted, the communication link establishment time can be shortened, and the networking and signal transmission instantaneity can be improved.)

1. The dual-mode wireless ad hoc network antenna array with the omnidirectional wave beams and the directional self-tracking wave beams is characterized in that the antenna array is a cylindrical conformal antenna array, and comprises a plurality of dual-polarized antenna units arranged in a preset mode and a mode switch arranged corresponding to the dual-polarized antenna units;

when the antenna array receives signals, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is an omnidirectional beam;

when the antenna array transmits signals, the mode switch controls the dual-polarized antenna units according to a preset working mode instruction, and the working mode of the antenna array is switched into a directional self-tracking beam mode, so that the spatial directional diagram of the antenna array is consistent with the direction of the received guide signals.

2. An antenna array according to claim 2, further comprising a low noise amplifier, a receive channel element and a transmit channel element;

the low noise amplifier is used for amplifying the receiving signal of the antenna unit;

the receive channel unit comprises a fixed phase shifter for setting a spatial pattern of the antenna array to an omnidirectional beam;

the transmitting channel unit is used for generating a transmitting signal of the dual-polarized antenna unit.

3. An antenna array according to claim 1, wherein the structure of the antenna array is a cylindrical conformal antenna array, and the dual polarized antenna elements are uniformly distributed.

4. An antenna array according to claims 1 to 3, wherein the mode switch is a single pole double throw switch.

5. A wireless ad hoc networking method, wherein a network node comprises an antenna array of any one of claims 1 to 4, the method comprising:

acquiring a preset signal receiving and transmitting requirement of the network node;

when the signal receiving and sending requirements are received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam;

and when the signal receiving and sending requirements are transmitting signals, controlling the dual-polarized antenna units according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signals.

6. The method according to claim 5, wherein when the signal transceiving requirement is a received signal, controlling dual-polarized antenna units according to a preset operation mode command, switching the operation mode of the antenna array to an omnidirectional beam mode, and making a spatial pattern of the antenna array to be an omnidirectional beam comprises:

when the signal receiving and sending requirements are received signals, calculating phase shift parameters of the dual-polarized antenna units when the space directional diagram of the antenna array is an omnidirectional beam based on an antenna array comprehensive technology and a preset optimization algorithm;

and setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional diagram of the antenna array to be an omnidirectional beam.

7. The method according to claim 5 or 6, wherein when the signaling request is a transmission signal, controlling the dual-polarized antenna elements according to a preset operation mode command, and switching the operation mode of the antenna array to a directional self-tracking beam mode, so that the spatial pattern of the antenna array is consistent with the direction of the received pilot signal comprises:

when the signal receiving and sending requirement is a transmitting signal, receiving a guide signal and acquiring a corresponding guide signal frequency;

setting the working frequency of a frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal to generate a transmitting signal;

and controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

8. A wireless ad hoc networking device, wherein a network node comprises an antenna array of any one of claims 1 to 4, the device comprising:

the signal receiving and sending requirement acquisition module is used for acquiring a preset signal receiving and sending requirement of the network node;

the omnidirectional beam mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction when the signal receiving and sending requirement is a received signal, and switching the working mode of the antenna array into an omnidirectional beam mode so as to enable a space directional diagram of the antenna array to be an omnidirectional beam;

and the directional self-tracking mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction and switching the working mode of the antenna array into a directional self-tracking beam mode when the signal receiving and sending requirement is a transmitting signal, so that the space directional diagram of the antenna array is consistent with the direction of the received guide signal.

9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 5 to 7 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 5 to 7.

Technical Field

The present invention relates to the field of networking communications technologies, and in particular, to a dual-mode wireless ad hoc network antenna array with an omnidirectional beam and a directional self-tracking beam.

Background

The wireless ad hoc network has the remarkable advantages of high capacity, high speed and high flexibility, and is widely applied to the fields of unmanned aerial vehicle swarm communication, Internet of things, regional emergency communication and the like.

In the existing wireless ad hoc network communication system, each node generally adopts a monopole antenna or a dipole antenna to transmit and receive communication signals. However, since the beams of the monopole antenna and the dipole antenna are omnidirectional beams and the antennas have no directivity in the space domain, crosstalk is likely to occur in communication signals between nodes, which results in a decrease in signal transmission rate and network capacity, and it is difficult to sufficiently exert the advantages of the wireless ad hoc network.

In addition, some wireless ad hoc network nodes adopt phased-array antennas to realize directional wave beams, so that high-speed communication is realized among the nodes in the wave beam coverage area, the probability of interference on the nodes outside the wave beam coverage area is greatly reduced, effective transmission nodes are determined according to the coverage area of the wave beams, and high-capacity communication and high-speed communication of the wireless ad hoc network are guaranteed. However, the basic flow of phased array to realize directional beam is to scan the beam in the full airspace to search the interested node position, then calculate the excitation amplitude and phase of the antenna array needed for realizing the beam pointing of the node position, and finally set the hardware parameters of phased array to adjust the beam pointing. Therefore, a large amount of node communication link establishment time (zhengbo, niuhua, zhangyao, etc., a TDMA ad hoc network beam selection method based on directional antennas) needs to be reserved for realizing directional communication of all nodes of the wireless ad hoc network, and finally the performances such as signal transmission real-time performance, rate, etc. are affected. Therefore, the method of implementing directional beams based on phased array antennas is not suitable for high-capacity and high-rate communication in wireless ad hoc networks. In addition, a phase conjugate circuit design method of a direction trace antenna has been proposed (please refer to Yan), but the direction trace antenna can only solve the problem of directional beam at the transmitting end, and has a drawback when used in a wireless ad hoc network communication system.

Disclosure of Invention

In view of the above, there is a need to provide a dual-mode wireless ad hoc network antenna array with omni-directional beams and directional self-tracking beams, which can satisfy the communication requirements of wireless ad hoc networks through a single antenna device.

The antenna array is in a cylindrical conformal antenna array structure, and comprises a plurality of dual-polarized antenna units arranged in a preset mode and a mode switch arranged corresponding to the dual-polarized antenna units.

When the antenna array receives signals, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, and the working mode of the antenna array is switched into an omnidirectional beam mode, so that a space directional diagram of the antenna array is an omnidirectional beam.

When the antenna array transmits signals, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, and the working mode of the antenna array is switched into a directional self-tracking beam mode, so that the spatial directional diagram of the antenna array is consistent with the direction of the received guide signals.

In one embodiment, the antenna array further comprises a low noise amplifier, a receiving channel unit and a transmitting channel unit.

The low noise amplifier is used for amplifying the received signal of the antenna unit.

The receive channel unit includes a fixed phase shifter for setting a spatial pattern of the antenna array to an omnidirectional beam.

The transmitting channel unit is used for generating a transmitting signal of the dual-polarized antenna unit.

In one embodiment, the antenna array is a cylindrical conformal antenna array, and the dual-polarized antenna units are uniformly distributed.

In one embodiment, the mode switch is a single pole double throw switch.

A wireless ad hoc network method, wherein a network node comprises an antenna array in any of the above embodiments, the method comprising:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

In one embodiment, when the signal transceiving requirement is a received signal, the dual-polarized antenna unit is controlled according to a preset operating mode instruction, the operating mode of the antenna array is switched to an omnidirectional beam mode, and the step of making the spatial pattern of the antenna array be an omnidirectional beam includes:

and when the signal receiving and sending requirements are received signals, calculating phase shift parameters of the dual-polarized antenna unit when the space directional diagram of the antenna array is an omnidirectional beam based on an antenna array comprehensive technology and a preset optimization algorithm.

And setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional pattern of the antenna array to be an omnidirectional beam.

In one embodiment, when the signal transceiving requirement is a transmission signal, the dual-polarized antenna unit is controlled according to a preset operating mode instruction, the operating mode of the antenna array is switched to a directional self-tracking beam mode, and the step of enabling the spatial directional pattern of the antenna array to be consistent with the direction of the received pilot signal includes:

and when the signal receiving and sending requirements are the transmitting signals, receiving the guide signals and acquiring the corresponding guide signal frequency.

And setting the working frequency of the frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal, and generating a transmitting signal.

And controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

A wireless ad hoc network device, a network node comprising an antenna array according to any of the above embodiments, comprising:

and the signal receiving and sending requirement acquisition module is used for acquiring the signal receiving and sending requirements of the preset network nodes.

And the omnidirectional beam mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction when the signal receiving and sending requirements are received signals, and switching the working mode of the antenna array into an omnidirectional beam mode to enable the space directional diagram of the antenna array to be an omnidirectional beam.

And the directional self-tracking mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction and switching the working mode of the antenna array into a directional self-tracking beam mode when the signal receiving and sending requirement is a transmitting signal, so that the space directional diagram of the antenna array is consistent with the direction of the received guide signal.

A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

The omnidirectional beam and directional self-tracking beam dual-mode wireless ad hoc network antenna array, the wireless ad hoc network method, the wireless ad hoc network device, the computer equipment and the storage medium adopt the cylindrical conformal antenna array and the plurality of dual-polarized antenna units, and the mode switch is arranged corresponding to the dual-polarized antenna units. When the antenna array receives signals, the dual-polarized antenna units are controlled through mode switching, the working mode of the antenna array is switched into an omnidirectional beam mode, and a space directional diagram of the antenna array is an omnidirectional beam; when the antenna array transmits signals, the dual-polarized antenna units are controlled through the mode switch, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the spatial directional diagram of the antenna array is consistent with the direction of the received guide signals. The antenna array provided by the application can be switched between an omnidirectional beam mode and a directional self-tracking beam mode according to the signal receiving and sending requirements, so that the communication requirements of a wireless ad hoc network are met; in addition, when the antenna array provided by the application works in an omnidirectional beam mode, the receiving of full airspace communication signals is realized, compared with the existing monopole antenna and dipole antenna, the received signals have higher signal-to-noise ratio, and the communication transmission quality is improved; finally, when the antenna array provided by the application works in a directional self-tracking beam mode, directional communication signal transmission is realized, compared with the existing phased array antenna, beam scanning in a full airspace is not needed, and the excitation amplitude and the phase of the antenna array are not needed to be calculated and adjusted, so that a large amount of node communication link establishment time can be saved, and the communication signal transmission real-time performance is improved.

Drawings

Fig. 1 is a schematic structural diagram of an antenna array of a wireless ad hoc network in dual mode of an omnidirectional beam and a directional self-tracking beam according to an embodiment;

fig. 2 is a block diagram of an antenna array for a wireless ad hoc network in dual mode of an omni-directional beam and a directional self-tracking beam according to another embodiment;

FIG. 3 is a diagram illustrating an internal structure of a computer device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In one embodiment, a wireless ad hoc network antenna array in dual modes of omnidirectional beam and directional self-tracking beam is provided, the structure of the antenna array is a cylindrical conformal antenna array, the antenna array comprises a plurality of dual-polarized antenna units arranged in a preset manner, and a mode switch arranged corresponding to the dual-polarized antenna units.

When the antenna array receives signals, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, and the working mode of the antenna array is switched into an omnidirectional beam mode, so that a space directional diagram of the antenna array is an omnidirectional beam.

When the antenna array transmits signals, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, and the working mode of the antenna array is switched into a directional self-tracking beam mode, so that the spatial directional diagram of the antenna array is consistent with the direction of the received guide signals.

Specifically, the present embodiment employs a cylindrical conformal antenna array and a plurality of dual-polarized antenna units, where the dual-polarized antenna units are arranged on the surface of the cylindrical conformal carrier platform, and the spatial patterns of the dual-polarized antenna units are arranged at positions where the spatial patterns can form an omnidirectional beam. When the beam width of the directional self-tracking beam needs to be reduced or the antenna gain needs to be improved, the circumference of the cylindrical conformal carrier can be increased, so that the antenna array can be provided with more antenna units, and further more effective antenna units are obtained.

If the functional requirement of the antenna array is a received signal when a network node where the antenna array is located is in wireless networking (or when the antenna array works in a wireless network), the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction, and the working mode of the antenna array is switched to an omnidirectional beam mode, so that a spatial directional diagram of the antenna array is an omnidirectional beam. The preset work instruction function comprises grouping control on a plurality of dual-polarized antenna units according to application scene requirements.

Correspondingly, if the functional requirement of the antenna array is a transmission signal when the network node where the antenna array is located is performing wireless networking (or when the antenna array works in a wireless network), the antenna array first receives a pilot signal transmitted by other network nodes, and when the pilot signal is received, the mode switch controls the dual-polarized antenna unit according to a preset working mode instruction according to the receiving direction indicated by the pilot signal, so that the working mode of the antenna array is switched to a directional self-tracking beam mode, and the spatial pattern of the antenna array is consistent with the receiving direction of the received pilot signal. It should be noted that, because the aperture distribution of the pillar conformal antenna array is arranged along the circumferential direction of the pillar, when an incident guide signal is incident from a certain angle, the antenna units on the back side of the pillar conformal antenna array are in a blind area, that is, only a part of the antenna units are in an effective working state, which also determines parameter indexes such as beam width, gain and the like of the directional self-tracking beam.

When the receiving antenna and the transmitting antenna of the network node performing wireless networking both adopt the antenna array provided by the embodiment, because the transmitting signal of the antenna array points to the corresponding receiving node, the antenna array adopting the omnidirectional beam can improve the quality of the receiving signal and can also avoid communication crosstalk between network communications. In addition, the antenna array with switchable modes provided by this embodiment can be switched according to the networking requirements of the network node, and the structure of the network node can be simplified.

The antenna array provided by the embodiment can be switched between an omnidirectional beam mode and a directional self-tracking beam according to the signal receiving and sending requirements, so that the communication requirements of the wireless ad hoc network are met; when the antenna array works in an omnidirectional beam mode, full airspace communication signal receiving is realized, compared with the existing monopole antenna and dipole antenna, the received signal has higher signal-to-noise ratio, and the communication transmission quality is improved; when the antenna array works in a directional self-tracking beam mode, directional communication signal transmission is realized, compared with the existing phased array antenna, full-airspace beam scanning is not needed, and the excitation amplitude and the phase of the antenna array are not needed to be calculated and adjusted, so that a large amount of node communication link establishment time can be saved, and the real-time property of communication signal transmission is improved.

In one embodiment, as shown in fig. 1, the antenna array is a cylindrical conformal antenna array, the dual-polarized antenna units are uniformly distributed, and include 8 dual-polarized antenna units and a cylindrical conformal carrier platform 102, where only 1 dual-polarized antenna unit 101 is shown in the figure. The antenna array structure provided by the embodiment is completely symmetrical, the design and calculation process of antenna array parameters when a preset antenna space directional pattern is obtained can be simplified, a more uniform directional pattern can be obtained, and the antenna manufacturing process can also be simplified.

In one embodiment, as shown in fig. 2, the antenna array employs a cylindrical conformal antenna array, which includes dual-polarized antenna elements, a mode switch, a low-noise amplifier, a receive channel element, and a transmit channel element.

The polarization modes of the dual-polarized antenna units are horizontal polarization and vertical polarization, and each dual-polarized antenna unit comprises a horizontal polarization port and a vertical polarization port.

The mode switch adopts a single-pole double-throw switch and is used for switching the working modes of the antenna array. Each dual-polarized antenna unit is correspondingly provided with a mode switch. The symmetrical antenna array structure can simplify the structure and control mode of the antenna array.

The low-noise amplifier is connected with the horizontal polarization port of the dual-polarized antenna unit and used for amplifying the received signal of the dual-polarized antenna unit.

The receiving channel unit comprises a fixed phase shifter, a power divider and a receiver module, wherein the fixed phase shifter is used for adjusting the phase shift of the dual-polarized antenna unit, so that the space directional diagram of the antenna array is an omnidirectional beam. The power divider is used for superposing received signals of all dual-polarized antenna units, and the receiver module can adopt the existing radio frequency receiver.

The transmitting channel unit comprises a mixer, a power divider, a frequency source, a band-pass filter and a power amplifier and is used for generating a transmitting signal of the dual-polarized antenna unit. The frequency source is used for generating local oscillation signals, the frequency mixer is used for realizing a phase conjugation function, the power amplifier is used for improving signal power, and the signals are fed into a vertical polarization port of the dual-polarization antenna unit and then radiated.

In use, when the single-pole double-throw switch is switched to the receiving channel unit, the antenna array operates in an omnidirectional beam mode. Parameters of the fixed phase shifter are required to be set to obtain the omnidirectional beam, and the parameters are obtained by: the phase shift parameters of the fixed phase shifters are obtained through an antenna array synthesis method, the space directional diagram objective function of the antenna array is set by taking the omnidirectional beam as a target, and then the phase shift parameters of each fixed phase shifter are obtained through calculation according to the conditions of the space directional diagram objective function, the aperture distribution of the antenna array, the space directional diagram or the active directional diagram of the dual-polarized antenna unit and the like by adopting optimization algorithms such as a genetic algorithm, a weed algorithm and the like.

When the single-pole double-throw switch is switched to the transmitting channel unit, the antenna array works in a directional self-tracking beam mode. Assuming that the spatial pattern objective function of the antenna array is set to

Ft(θ)=1

Theta represents an azimuth angle, and the value interval is-90 degrees.

Assuming that the active spatial directional pattern function of the dual polarized antenna elements is denoted as F1(θ)、F2(θ)、···、FN(theta), the phase shift parameter of the fixed phase shifter is expressed asThe spatial pattern function of the cylindrical conformal antenna array is expressed as

Wherein, beta is 2 pi fr/c,frRepresenting the receive channel operating frequency of the antenna array and c the speed of light in free space.

The comprehensive objective of the antenna array is to calculate the excitation amplitude and phase of the antenna array, so that the spatial directional pattern function of the antenna array is equal to or close to the preset spatial directional pattern target function of the antenna array. In the present invention, in order to make Fa(theta) equal to or approaching Ft(theta) the phase shift parameters of the fixed phase shifters can be obtained by using optimization algorithms such as genetic algorithm and weed algorithm

When the single-pole double-throw switch is switched to the transmitting channel unit, the antenna array works in a directional self-tracking beam mode. Assuming that the frequency of the incident pilot signal is fiThe local oscillator signal generated by the frequency source operates at twice the frequency of the pilot signal, denoted as 2fiThen the frequency of the mixer output is fiIs in conjugate relation with the phase of the incident pilot signal. Thus, the beam of the antenna array as a transmission will be directed in the direction of the incident pilot signal. Due to the signal inThe transmission time in the radio frequency channel is extremely short, so the antenna array can form a beam pointing to the direction of the incident guide signal in extremely short time, and when the direction of the incident guide signal is changed, the beam pointing of the antenna array is automatically adjusted, namely the antenna array realizes directional self-tracking beams.

A wireless ad hoc network method, wherein a network node comprises an antenna array in any of the above embodiments, the method comprising:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

In one embodiment, when the signal transceiving requirement is a received signal, the dual-polarized antenna unit is controlled according to a preset operating mode instruction, the operating mode of the antenna array is switched to an omnidirectional beam mode, and the step of making the spatial pattern of the antenna array be an omnidirectional beam includes:

and when the signal receiving and sending requirements are received signals, calculating phase shift parameters of the dual-polarized antenna unit when the space directional diagram of the antenna array is an omnidirectional beam based on an antenna array comprehensive technology and a preset optimization algorithm.

And setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional pattern of the antenna array to be an omnidirectional beam.

In one embodiment, when the signal transceiving requirement is a transmission signal, the dual-polarized antenna unit is controlled according to a preset operating mode instruction, the operating mode of the antenna array is switched to a directional self-tracking beam mode, and the step of enabling the spatial directional pattern of the antenna array to be consistent with the direction of the received pilot signal includes:

and when the signal receiving and sending requirements are the transmitting signals, receiving the guide signals and acquiring the corresponding guide signal frequency.

And setting the working frequency of the frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal, and generating a transmitting signal.

And controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

In one embodiment, a wireless ad hoc network device is provided, where a network node for networking includes an antenna array in any of the above embodiments, including:

and the signal receiving and sending requirement acquisition module is used for acquiring the signal receiving and sending requirements of the preset network nodes.

And the omnidirectional beam mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction when the signal receiving and sending requirements are received signals, and switching the working mode of the antenna array into an omnidirectional beam mode to enable the space directional diagram of the antenna array to be an omnidirectional beam.

And the directional self-tracking mode setting module is used for controlling the dual-polarized antenna unit according to a preset working mode instruction and switching the working mode of the antenna array into a directional self-tracking beam mode when the signal receiving and sending requirement is a transmitting signal, so that the space directional diagram of the antenna array is consistent with the direction of the received guide signal.

In one embodiment, the omni-directional beam mode setting module is configured to calculate a phase shift parameter of the dual-polarized antenna unit when the spatial pattern of the antenna array is an omni-directional beam based on an antenna array synthesis technique and a preset optimization algorithm when the signal transceiving requirement is a received signal. And setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional pattern of the antenna array to be an omnidirectional beam.

In one embodiment, the directional self-tracking mode setting module is configured to receive a pilot signal and obtain a corresponding pilot signal frequency when the signaling request is a transmission signal. And setting the working frequency of the frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal, and generating a transmitting signal. And controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

For specific limitations of a wireless ad hoc network method and apparatus, reference may be made to the above limitations of a wireless ad hoc network antenna array with dual modes of omni-directional beams and directional self-tracking beams, which are not described herein again. The modules in the wireless ad hoc network device may be implemented in whole or in part by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 3. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a wireless ad hoc network method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the architecture shown in fig. 3 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, there is provided a computer device comprising a memory storing a computer program and a processor implementing the following steps when the processor executes the computer program:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and when the signal receiving and sending requirements are received signals, calculating phase shift parameters of the dual-polarized antenna unit when the space directional diagram of the antenna array is an omnidirectional beam based on an antenna array comprehensive technology and a preset optimization algorithm. And setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional pattern of the antenna array to be an omnidirectional beam.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and when the signal receiving and sending requirements are the transmitting signals, receiving the guide signals and acquiring the corresponding guide signal frequency. And setting the working frequency of the frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal, and generating a transmitting signal. And controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

and acquiring the signal transceiving requirement of the preset network node.

When the signal receiving and sending requirements are the received signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched to an omnidirectional beam mode, and a space directional diagram of the antenna array is made to be an omnidirectional beam.

When the signal receiving and sending requirements are the transmission signals, the dual-polarized antenna units are controlled according to a preset working mode instruction, the working mode of the antenna array is switched into a directional self-tracking beam mode, and the space directional diagram of the antenna array is consistent with the direction of the received guide signals.

In one embodiment, the computer program when executed by the processor further performs the steps of: and when the signal receiving and sending requirements are received signals, calculating phase shift parameters of the dual-polarized antenna unit when the space directional diagram of the antenna array is an omnidirectional beam based on an antenna array comprehensive technology and a preset optimization algorithm. And setting the dual-polarized antenna unit according to the phase shift parameter, controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into an omnidirectional beam mode to enable a spatial directional pattern of the antenna array to be an omnidirectional beam.

In one embodiment, the computer program when executed by the processor further performs the steps of: and when the signal receiving and sending requirements are the transmitting signals, receiving the guide signals and acquiring the corresponding guide signal frequency. And setting the working frequency of the frequency source local oscillation signal of the antenna array to be 2 times of the frequency of the guide signal, and generating a transmitting signal. And controlling the dual-polarized antenna unit according to a preset working mode instruction, and switching the working mode of the antenna array into a directional self-tracking beam mode to enable the spatial directional diagram of the antenna array to be consistent with the direction of the received guide signal.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

13页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:用于毫米波成像的稀疏采样天线阵列

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!