阅读说明：本技术 一种8～18GHz宽带噪声干扰源 (8 ~ 18GHz broadband noise interference source ) 是由 王晓平 刘昆 翟凯 杨皓楠 于 2021-08-02 设计创作，主要内容包括：本发明涉及宽带噪声干扰源技术领域,尤其为一种8～18GHz宽带噪声干扰源,包括电源模块、FPGA模块、软件操作模块和ARM,所述ARM电性连接有触摸屏、调制模块、8～12GHz BPF、12～18GHz BPF、数控衰减器和PLL,所述PLL电性连接有恒温晶振和混频器,通过设置的FPGA模块与ARM进行控制运算,结合触摸屏的控制指令,生成不同频率、不同功率以及不同样式的干扰信号,通过设置的FPGA模块处理信号并通过喇叭天线将射频信号发送出去,整个流程兼具软件无线电的灵活性及射频链路的完整性,易于扩展与实现,通过设置的软件操作模块实现了软件操作界面的详细设置,便于用户有针对性地选择辐射源信息,便于生成符合要求的干扰信号。(The invention relates to the technical field of broadband noise interference sources, in particular to an 8-18 GHz broadband noise interference source, which comprises a power supply module, an FPGA module, a software operation module and an ARM, wherein the ARM is electrically connected with a touch screen, a modulation module, an 8-12 GHz BPF, a 12-18 GHz BPF, a numerical control attenuator and a PLL, the PLL is electrically connected with a constant temperature crystal oscillator and a frequency mixer, the control operation is carried out through the arranged FPGA module and the ARM, interference signals with different frequencies, different powers and different patterns are generated by combining control instructions of the touch screen, the signals are processed through the arranged FPGA module, and radio frequency signals are sent out through a horn antenna, the whole process has the flexibility of software radio and the integrity of a radio frequency link, the expansion and the realization are easy, the detailed setting of a software operation interface is realized through the arranged software operation module, and a user can conveniently and pointedly select radiation source information, facilitating the generation of a satisfactory interference signal.)

1. The utility model provides an 8 ~ 18GHz broadband noise interference source, includes power module, FPGA module, software operation module and ARM, its characterized in that: the ARM electric connection has touch-sensitive screen, modulation module, 8 ~ 12GHz BPF, 12 ~ 18GHz BPF, numerical control attenuator and PLL, PLL electric connection has constant temperature crystal oscillator and mixer, numerical control attenuator electric connection has amplifier and power amplifier, power amplifier electric connection has the horn antenna, the amplifier is with 8 ~ 12GHz BPF and 12 ~ 18GHz BPF equal electric connection.

2. The 8-18 GHz broadband noise interference source according to claim 1, characterized in that: one side of the FPGA module is provided with a radio frequency port, one end of the radio frequency port is provided with a circulator, the other end of the circulator is provided with a horn antenna, and a DRFM and noise generation module are arranged in the FPGA module.

3. The 8-18 GHz broadband noise interference source according to claim 1, characterized in that: the software operation module is used for setting a software operation interface, and the software operation interface comprises a main interface, a radar calibration interface, a signal sorting interface and an interference parameter interface.

4. The 8-18 GHz broadband noise interference source according to claim 3, characterized in that: the main interface comprises a frequency spectrum interface, a signal oscillogram and power spectrum interface, an amplitude and antenna directional diagram interface, a map interface, a radar parameter display interface and an interference parameter display interface.

5. The 8-18 GHz broadband noise interference source according to claim 3, characterized in that: the radar calibration interface comprises an interference data interface and a radar track interface.

6. The 8-18 GHz broadband noise interference source according to claim 3, characterized in that: the signal sorting interface comprises a radiation source library interface, a temporary radiation source interface and a PDW display storage interface, wherein the radiation source library interface displays radiation source information, and the radiation source information comprises a number, a source type, a carrier frequency type, a maximum and minimum frequency, a pulse width, a repetition frequency type, a maximum and minimum PRI and identification reliability.

7. The 8-18 GHz broadband noise interference source according to claim 3, characterized in that: the interference parameter interface comprises an interference parameter list, a noise interference option, a dense decoy option and a false track option, wherein the noise interference option comprises blocking interference, aiming frequency interference and frequency sweep interference, the dense decoy option comprises randomness and uniformity, and the false track option comprises a straight track, a circular track, an arbitrary curve and a track file.

Technical Field

The invention relates to the technical field of broadband noise interference sources, in particular to an 8-18 GHz broadband noise interference source.

Background

Electronic warfare refers to military warfare for the use and control right of electromagnetic spectrum contended by two enemies, in the age in which the electronic warfare is prevalent, the safety and resource advantages of electronic information are the main reasons for determining the victory or defeat of the war, electronic interference and counter interference are important components, the electronic interference to the radar is the radar signal weakened by using an electronic method, the receiving mode of the radar signal is destroyed to prevent the radar from working, so that the radar cannot correctly receive and judge the correct signal to be received, the operational capability of the radar equipment in a complex electromagnetic environment is greatly limited by the anti-interference capability of the radar, and therefore, the demand for an 8-18 GHz broadband noise interference source is increasing.

Most noise interference sources in the current market are difficult to generate interference signals with different frequencies, different powers and different styles, a software interface operation method of a broadband noise interference source is complicated, sufficient time is lacked for adjusting parameters in fast-paced electronic warfare, and convenience of the software interface operation method directly influences a war bureau, so that the 8-18 GHz broadband noise interference source is provided for solving the problems.

Disclosure of Invention

The invention aims to provide an 8-18 GHz broadband noise interference source to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an 8 ~ 18GHz broadband noise interference source, includes power module, FPGA module, software operation module and ARM, ARM electric connection has touch-sensitive screen, modulation module, 8 ~ 12GHz BPF, 12 ~ 18GHz BPF, numerical control attenuator and PLL, PLL electric connection has constant temperature crystal oscillator and mixer, numerical control attenuator electric connection has amplifier and power amplifier, power amplifier electric connection has horn antenna, amplifier and the equal electric connection of 8 ~ 12GHz BPF and 12 ~ 18GHz BPF.

Preferably, a radio frequency port is arranged on one side of the FPGA module, a circulator is arranged at one end of the radio frequency port, a horn antenna is arranged at the other end of the circulator, a DRFM and noise generation module are arranged in the FPGA, and the data interaction control method of the FPGA module comprises the following steps:

a1, the noise signal generated by the noise generation module is sent to the incident frequency port after being subjected to time domain equalization through data interpolation and an output digital equalizer;

a2, converting the noise signal after time domain equalization into an analog signal through a DAC by the radio frequency port, and transmitting the noise signal through a zero intermediate frequency transmitter, a circulator and a horn antenna in sequence;

a3, sending the signal received by the horn antenna to a radio frequency port through a circulator;

a4, converting the received signal into a digital signal through a zero intermediate frequency receiver and an ADC by a radio frequency port, and sending the digital signal to an FPGA module;

a5, FPGA inputs digital equalizer and extracts and analyzes signal amplitude, antenna directional diagram and TQA data, the pulse information storage module stores data in DRFM through STFT;

a6, reading the information of the FPGA module by the control software of the interference equipment through DMA;

a7, DRFM through Doppler amplifier and distance delay, through data interpolation and output digital equalizer, into RF port;

a8, repeating the steps A2-A7.

Preferably, the software operation module is used for setting a software operation interface, and the software operation interface comprises a main interface, a radar calibration interface, a signal sorting interface and an interference parameter interface.

Preferably, the main interface includes a frequency spectrum interface, a signal oscillogram and power spectrum interface, an amplitude and antenna directional diagram interface, a map interface, a radar parameter display interface and an interference parameter display interface.

Preferably, the radar calibration interface comprises an interference data interface and a radar track interface.

Preferably, the signal sorting interface includes a radiation source library interface, a temporary radiation source interface, and a PDW display storage interface, where the radiation source library interface displays radiation source information, and the radiation source information includes a number, a source type, a carrier frequency type, a maximum and minimum frequency, a pulse width, a repetition frequency type, a maximum and minimum PRI, and an identification reliability.

Preferably, the interference parameter interface includes an interference parameter list, a noise interference option, a dense decoy option and a false track option, the noise interference option includes blocking interference, aiming frequency interference and sweep frequency interference, the dense decoy option includes random and uniform, and the false track option includes a straight track, a circular track, an arbitrary curve and a track file.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the FPGA module and the ARM are used for carrying out control operation, and interference signals with different frequencies, different powers and different styles are generated by combining control instructions of the touch screen.

2. In the invention, the signal is processed by the FPGA module and the radio frequency signal is sent out by the horn antenna, so that the whole process has the flexibility of software radio and the integrity of a radio frequency link, and the extension and the implementation are easy.

3. In the invention, the detailed setting of the software operation interface is realized through the set software operation module, so that a user can select radiation source information in a targeted manner, and interference signals meeting requirements can be generated conveniently.

Drawings

FIG. 1 is a schematic diagram of an ARM installation structure of the present invention;

FIG. 2 is a schematic view of an interface software operating interface according to the present invention;

FIG. 3 is a flow chart of a data interaction control method of the FPGA module of the present invention;

fig. 4 is an external view of the present invention.

Detailed Description

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides an 8 ~ 18GHz broadband noise interference source, includes power module, FPGA module, software operation module and ARM, ARM electric connection has touch-sensitive screen, modulation module, 8 ~ 12GHz BPF, 12 ~ 18GHz BPF, numerical control attenuator and PLL, PLL electric connection has constant temperature crystal oscillator and mixer, numerical control attenuator electric connection has amplifier and power amplifier, power amplifier electric connection has horn antenna, amplifier and the equal electric connection of 8 ~ 12GHz BPF and 12 ~ 18GHz BPF.

The data interaction control method of the FPGA module comprises the following steps of:

a1, the noise signal generated by the noise generation module is sent to the incident frequency port after being subjected to time domain equalization through data interpolation and an output digital equalizer;

a2, converting the noise signal after time domain equalization into an analog signal through a DAC by the radio frequency port, and transmitting the noise signal through a zero intermediate frequency transmitter, a circulator and a horn antenna in sequence;

a3, sending the signal received by the horn antenna to a radio frequency port through a circulator;

a4, converting the received signal into a digital signal through a zero intermediate frequency receiver and an ADC by a radio frequency port, and sending the digital signal to an FPGA module;

a5, FPGA inputs digital equalizer and extracts and analyzes signal amplitude, antenna directional diagram and TQA data, the pulse information storage module stores data in DRFM through STFT;

a6, reading the information of the FPGA module by the control software of the interference equipment through DMA;

a7, DRFM through Doppler amplifier and distance delay, through data interpolation and output digital equalizer, into RF port;

a8, repeating the steps A2-A7;

this arrangement facilitates interference with respect to the received signal;

the software operation module is used for setting a software operation interface, the software operation interface comprises a main interface, a radar calibration interface, a signal sorting interface and an interference parameter interface, the main interface comprises a frequency spectrum interface, a signal oscillogram and power spectrum interface, an amplitude and antenna directional diagram interface, a map interface, a radar parameter display interface and an interference parameter display interface, the setting is favorable for comprehensively displaying the frequency spectrum information of signals, the radar calibration interface comprises an interference data interface and a radar track interface, the signal sorting interface comprises a radiation source library interface, a temporary radiation source interface and a PDW display and storage interface, the PDW display and storage interface can selectively store information including PA (output power), PW (pulse width), RF (output frequency) and PRI (pulse repetition period), the radiation source library interface displays radiation source information, and the radiation source information comprises serial numbers, a serial number, and a serial number, the method comprises the steps of setting a source type, a carrier frequency type, a maximum and minimum frequency, a pulse width, a repetition frequency type, a maximum and minimum PRI and identification reliability, wherein the setting is convenient for a user to select a corresponding radiation source library according to the characteristics of a signal to be interfered, an interference parameter interface comprises an interference parameter list, a noise interference option, a dense decoy option and a false track option, the noise interference option comprises blocking interference, aiming frequency interference and frequency sweep interference, the dense decoy option comprises random and uniform, the false track option comprises a straight track, a circular track, an arbitrary curve and a track file, and the setting is convenient for adjusting interference parameters.

The working process is as follows: according to the invention, before use, power is supplied by an external power supply, a digital radio frequency storage and forwarding technology is adopted, 8-18 GHz broadband noise signals are transmitted, onboard high-performance FPGA and ARM are utilized for control operation, interference signals with different frequencies, different powers and different styles are generated by combining control instructions of a 7-inch touch screen, and finally radio frequency signals are transmitted through an antenna.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.