阅读说明：本技术 机载分布式综合射频传感器系统 (Airborne distributed comprehensive radio frequency sensor system ) 是由 颜滨 杨威 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种机载分布式综合射频传感器系统,其包括：多个有源天线单元、综合信号及信息处理机架。多个有源天线单元,采用分布式布局,所述有源天线单元用于实现无线电信号收发处理,并且将接收的无线电信号转化为数字信号,其中所述无线电信号包括：雷达信号、电子战信号、通信导航识别信号；综合信号及信息处理机架的传输接口与所述有源天线单元的传输接口相连,用于接收并处理所述有源天线单元传输的数字信号。该机载分布式综合射频传感器系统能够简化系统结构,可以对雷达、电子战以及通信导航识别信号资源进行良好的动态分配,有利于系统资源的综合利用。(The invention discloses an airborne distributed comprehensive radio frequency sensor system, which comprises: a plurality of active antenna units, a composite signal and information processing chassis. A plurality of active antenna units in a distributed layout, the active antenna units being configured to implement radio signal transceiving processing and convert a received radio signal into a digital signal, wherein the radio signal includes: radar signals, electronic warfare signals, communication navigation identification signals; and the transmission interface of the comprehensive signal and information processing rack is connected with the transmission interface of the active antenna unit and used for receiving and processing the digital signal transmitted by the active antenna unit. The airborne distributed comprehensive radio frequency sensor system can simplify the system structure, can perform good dynamic allocation on radar, electronic warfare and communication navigation identification signal resources, and is favorable for comprehensive utilization of system resources.)

1. An airborne distributed integrated radio frequency sensor system, comprising:

a plurality of active antenna units in a distributed layout, the active antenna units being configured to implement radio signal transceiving processing and convert a received radio signal into a digital signal, wherein the radio signal includes: radar signals, electronic warfare signals, communication navigation identification signals; and

and a transmission interface of the comprehensive signal and information processing rack is connected with the transmission interface of the active antenna unit and used for receiving and processing the digital signal transmitted by the active antenna unit.

2. The on-board distributed complex radio frequency sensor system of claim 1, wherein the active antenna unit comprises:

and the active phased array antenna adopts a digital phased array system and is used for carrying out radio frequency processing and digital processing on the received radar signals, the received electronic warfare signals and the received communication navigation identification signals and then transmitting the signals to the comprehensive signal and information processing rack.

3. The on-board distributed complex radio frequency sensor system of claim 1, wherein the active antenna unit comprises:

the active phased array antenna adopts a simulation phased array system and is used for carrying out radio frequency processing and phase shifting processing on the received radar signals, electronic warfare signals and communication navigation identification signals; and

and the digital processing unit is connected with the active phased array antenna and used for performing analog-to-digital conversion on the signals processed by the active phased array antenna to obtain digital signals and transmitting the digital signals to the comprehensive signal and information processing rack.

4. The on-board distributed complex radio frequency sensor system of claim 1, wherein the active antenna unit comprises:

the passive antenna is used for receiving the communication navigation identification signal and the electronic warfare signal;

the radio frequency processing unit is connected with the passive antenna and is used for carrying out radio frequency processing on the radio signals received by the passive antenna; and

and the digital processing unit is connected with the radio frequency processing unit and is used for carrying out analog-to-digital conversion on the radio signals processed by the radio frequency processing unit, and transmitting the obtained digital signals to the comprehensive signal and information processing rack.

5. The on-board distributed integrated radio frequency sensor system of claim 1, wherein the integrated signal and information processing rack comprises:

the signal processing module is used for completing modulation and demodulation, coding and decoding processing of radar signals, electronic warfare signals and communication navigation identification signals; and

and the information processing module is used for finishing target indication, image processing, situation analysis, threat warning and link message format processing of radar, electronic warfare and communication navigation identification functions.

6. The on-board distributed integrated radio frequency sensor system of claim 5, wherein said integrated signal and information processing rack further comprises:

and the clock module is connected with the signal processing module and used for providing a precise clock for the signal processing module and providing a time service function.

7. The on-board distributed integrated radio frequency sensor system of claim 6, wherein said integrated signal and information processing rack further comprises: a control module and a power supply module, wherein the control module and the power supply module are connected with the signal processing module, the information processing module and the clock module,

the control module is used for managing the signal processing module, the information processing module, the clock module and the power supply module, and comprises parameter configuration, fault detection and function reconstruction; the control module is also used for realizing a network switching function and providing a data distribution processing channel for the signal processing module and the information processing module; and

the power module is also connected with the control module and used for supplying power to the signal processing module, the information processing module, the clock module and the control module.

8. The on-board distributed complex radio frequency sensor system of claim 1, wherein the transmission interface is a digital fiber bus transmission interface.

Technical Field

The invention relates to the technical field of wireless communication, in particular to an airborne distributed comprehensive radio frequency sensor system.

Background

The comprehensive radio frequency sensor system in the existing aviation aircraft adopts a comprehensive integrated design idea to uniformly design radar, electronic warfare and communication navigation identification.

The existing integrated radio frequency sensor system adopts a three-level structure of an antenna/antenna array, a radio frequency processing rack and an integrated core processing rack. The inventors have found that existing integrated radio frequency sensor systems have the following disadvantages.

One, existing integrated rf sensor system includes tens of antennas/antenna arrays, several rf processing racks, and an integrated core processing rack. Each rf processing rack or integrated core processing rack is in turn composed of dozens of modules of different functions, resulting in a large and complex system composition.

Secondly, the existing integrated radio frequency sensor system only realizes the generalized processing of radar, electronic warfare and communication navigation identification. In different task stages, the requirements of radar, electronic warfare and communication navigation identification on processing resources have obvious difference, and the processing resources in the system cannot be fully utilized due to the fact that the three functions do not have resource mutual scheduling capability.

Thirdly, the existing integrated radio frequency sensor system needs various radio frequency transmission lines, low frequency transmission lines and optical fiber transmission lines to meet the signal transmission requirements among different devices. Resulting in various types of interfaces between devices and complicated relationships. Mutual interference exists between transmission lines, and the electromagnetic compatibility effect of the system is aggravated.

And the existing comprehensive radio frequency sensor system adopts a highly comprehensive technology, so that radio frequency broadband processing is realized, the volume and weight of the system are increased due to the use of a large number of high-end high-performance components, the power consumption is increased, and the system cost is also increased sharply. The heat dissipation capability of the system becomes an important problem, and if the problem cannot be effectively solved, the reliability of the system is reduced when the equipment works in a high-temperature environment for a long time.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide an airborne distributed comprehensive radio frequency sensor system which can simplify the system structure, can perform good dynamic distribution on radar, electronic warfare and communication navigation identification signals and is beneficial to comprehensive utilization of system resources.

To achieve the above object, the present invention provides an airborne distributed integrated radio frequency sensor system, comprising: a plurality of active antenna units, a composite signal and information processing chassis. A plurality of active antenna units in a distributed layout, the active antenna units being configured to implement radio signal transceiving processing and convert a received radio signal into a digital signal, wherein the radio signal includes: radar signals, electronic warfare signals, communication navigation identification signals; and the transmission interface of the comprehensive signal and information processing rack is connected with the transmission interface of the active antenna unit and used for receiving and processing the digital signal transmitted by the active antenna unit.

In one embodiment of the present invention, the active antenna unit includes: and the active phased array antenna adopts a digital phased array system and is used for carrying out radio frequency processing and digital processing on the received radar signals, the received electronic warfare signals and the received communication navigation identification signals and then transmitting the signals to the comprehensive signal and information processing rack.

In one embodiment of the present invention, the active antenna unit includes: an active phased array antenna and a digital processing unit. The active phased array antenna adopts a simulation phased array system and is used for carrying out radio frequency processing and phase shifting processing on the received radar signals, electronic warfare signals and communication navigation identification signals; and the digital processing unit is connected with the active phased array antenna and used for performing analog-to-digital conversion on the signals processed by the active phased array antenna to obtain digital signals and transmitting the digital signals to the comprehensive signal and information processing rack.

In one embodiment of the present invention, the active antenna unit includes: the system comprises a passive antenna, a radio frequency processing unit and a digital processing unit. The passive antenna is used for receiving the communication navigation identification signal and the electronic warfare signal; the radio frequency processing unit is connected with the passive antenna and is used for carrying out radio frequency processing on the radio signals received by the passive antenna; the digital processing unit is connected with the radio frequency processing unit and used for carrying out analog-to-digital conversion on the radio signals processed by the radio frequency processing unit, and the obtained digital signals are transmitted to the comprehensive signal and information processing rack.

In one embodiment of the present invention, the integrated signal and information processing rack includes: the device comprises a signal processing module and an information processing module. The signal processing module is used for completing modulation and demodulation, coding and decoding processing of radar signals, electronic warfare signals and communication navigation identification signals. The information processing module is used for finishing target indication, image processing, situation analysis, threat warning and link message format processing of radar, electronic warfare and communication navigation identification functions.

In an embodiment of the present invention, the integrated signal and information processing rack further includes a clock module, connected to the signal processing module, for providing a precision clock to the signal processing module and providing a time service function.

In an embodiment of the present invention, the integrated signal and information processing rack further comprises: the control module and the power module are connected with the signal processing module, the information processing module and the clock module, and the control module is used for managing the signal processing module, the information processing module, the clock module and the power module and comprises parameter configuration, fault detection and function reconstruction; the control module is also used for realizing a network switching function and providing a data distribution processing channel for the signal processing module and the information processing module; the power module is used for supplying power to the signal processing module, the information processing module, the clock module and the control module.

In an embodiment of the present invention, the transmission interface is a digital optical fiber bus transmission interface.

Compared with the prior art, the airborne distributed comprehensive radio frequency sensor system simplifies the existing three-level structure into a two-level structure, splits the functions of the original radio frequency processing rack, forms an active antenna unit by the miniaturization of the radio frequency processing part and the integration of an antenna/antenna array, and integrates the signal processing part and the comprehensive core processing rack to form a comprehensive signal and information processing rack; after the system is adjusted into a two-stage architecture, the comprehensive signal and information processing rack is designed according to the requirement of simultaneously meeting radar, electronic warfare and communication navigation identification, processing resources are dynamically allocated to three functions for use according to different task stages, the processing resources in the system are fully utilized, and energy conservation and consumption reduction are realized; the optical fiber communication has the characteristics of large capacity, high speed and strong confidentiality by adopting a uniform optical fiber interface, and has strong anti-interference capability and is not easily interfered by external signals; the interfaces of all devices in the optical fiber unified system are adopted, the layout of the transmission line is optimized, and the electromagnetic compatibility effect is good; in addition, the invention combines the development of the current radio frequency integration technology, and fully considers the radio frequency chip technology while carrying out radio frequency integrated design on the system. The radio frequency chip has the characteristics of obvious small volume and light weight, and can make important contribution to the weight reduction and consumption reduction of the system. Meanwhile, the radio frequency processing chip in mass production can meet the design requirement of low cost of the system.

Drawings

FIG. 1 is a structural component of an airborne distributed integrated RF sensor system according to one embodiment of the present invention;

fig. 2 is a structural assembly of an integrated signal and information processing rack according to an embodiment of the present invention.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

To overcome the problems of the prior art, the present invention provides an onboard distributed integrated radio frequency sensor system. FIG. 1 is an onboard distributed integrated RF sensor system according to one embodiment of the invention.

The airborne distributed integrated radio frequency sensor system comprises a plurality of active antenna units 10 in a distributed layout and an integrated signal and information processing rack 11 in a centralized layout.

The active antenna element 10 is used to implement radio signal transceiving processing. The integrated signal and information processing rack 11 performs centralized processing for signal processing and information processing. The two are interconnected through a uniform high-speed digital optical fiber bus transmission interface.

The active antenna unit 10 has an antenna array. The antenna array may be an active antenna or a passive antenna. The active antenna may be a one-dimensional or two-dimensional active phased array antenna, commonly used in radar, electronic warfare and communication navigation identification functions. The active phased array antenna has a complete radio frequency processing function, and can be divided into a digital phased array system and an analog phased array system according to different processing modes. And after the radio frequency processing is finished by adopting the antenna of the analog phased array system, the digital processing is carried out. The passive antenna is an antenna without any active device, and mainly comprises an omnidirectional radiation antenna applied to a communication navigation identification function and a directional detection antenna applied to an electronic warfare function.

After the antenna of the digital phased array system completes the related antenna algorithm, the acquired data can be directly transmitted into the comprehensive signal and information processing rack 11 through the high-speed digital optical fiber bus transmission interface, and the subsequent signal processing and information processing are completed. In one embodiment, the active antenna unit includes: and the active phased array antenna adopts a digital phased array system and is used for carrying out radio frequency processing and digital processing on the received radar signals and communication navigation identification signals and then transmitting the signals to the comprehensive signal and information processing rack.

The antenna adopting the analog phased array system needs to be added with digital processing hardware after completing radio frequency processing and phase shifting processing, converts analog signals into digital signals and outputs data through a high-speed digital optical fiber bus interface. In one embodiment, the active antenna unit includes: an active phased array antenna and a digital processing unit. The active phased array antenna adopts a simulation phased array system and is used for carrying out radio frequency processing and phase shifting processing on the received radar signals, electronic warfare signals and communication navigation identification signals; and the digital processing unit is connected with the active phased array antenna and used for performing analog-to-digital conversion on the signals processed by the active phased array antenna to obtain digital signals and transmitting the digital signals to the comprehensive signal and information processing rack.

The passive antenna processing scheme is that the antenna, radio frequency processing, digital sampling and other functions are structurally integrated, a complete active antenna unit 10 is formed in physical form, the unit has a complete radio receiving and transmitting processing function, and digital signals formed after digital sampling are output through a high-speed digital optical fiber bus interface. In one embodiment, an active antenna unit includes: the system comprises a passive antenna, a radio frequency processing unit and a digital processing unit. The passive antenna is used for receiving the communication navigation identification signal and the directional reconnaissance and direction finding signal of the electronic warfare; the radio frequency processing unit is connected with the passive antenna and is used for carrying out radio frequency processing on the radio signals received by the passive antenna; the digital processing unit is used for carrying out analog-to-digital conversion on the radio signals processed by the radio frequency processing unit, and transmitting the obtained digital signals to the comprehensive signal and information processing rack.

The integrated signal and information processing rack 11 mainly completes radar, electronic warfare, communication navigation identification signal level and information level service processing. As shown in fig. 2, in the present embodiment, the integrated signal and information processing rack 11 includes five types of functional modules: a signal processing module 11a, an information processing module 11b, a power supply module 11c, a clock module 11d and a control module 11 e. The number of each type of module can be flexibly configured according to specific requirements. The signal processing module 11a mainly completes the waveform processing of modulation and demodulation, encoding and decoding and the like of radar, electronic warfare and communication navigation identification functions. The information processing module 11b mainly completes target indication, image processing, situation analysis, threat warning, link message format processing and the like of radar, electronic warfare and communication navigation identification functions. The power module 11c mainly implements power supply output to each functional module, and the clock module 11d is mainly used for providing high-precision and high-stability clock output to the signal processing module 11a and providing a time service function. The control module 11e is mainly used for managing other functional modules, including parameter configuration, fault detection, function reconfiguration and the like; meanwhile, the system has a network switching function and provides a data distribution processing channel for the signal processing module 11a and the information processing module 11 b.

In summary, the airborne distributed integrated rf sensor system according to the embodiment simplifies the existing three-level structure into a two-level structure, splits the functions of the original rf processing rack, integrates the rf processing part with the antenna/antenna array through miniaturization to form the active antenna unit 10, and integrates the signal processing part with the integrated core processing rack to form the integrated signal and information processing rack; after the system is adjusted to a two-stage architecture, the comprehensive signal and information processing rack 11 is designed according to the requirement of simultaneously meeting radar, electronic warfare and communication navigation identification, and dynamically allocates processing resources to three functions for use according to different task stages, so that the processing resources in the system are fully utilized, and energy conservation and consumption reduction are realized; and adopt unified optical fiber interface, optical fiber communication has the characteristics that the capacity is big, fast and the confidentiality is strong, and the interference killing feature is strong moreover, is difficult to receive external signal's interference. The interfaces of all devices in the optical fiber unified system are adopted, the layout of the transmission lines is optimized, and the electromagnetic compatibility effect is good. In addition, in the embodiment, in combination with the development of the current radio frequency integration technology, the radio frequency chip technology is fully considered while the radio frequency integrated design is performed on the system. The radio frequency chip has the characteristics of obvious small volume and light weight, and can make important contribution to the weight reduction and consumption reduction of the system. Meanwhile, the radio frequency processing chip in mass production can meet the design requirement of low cost of the system.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.