Realization Of Radar Jamming System Based On Software Defined Radio

As an important component of electronic warfare,radar countermeasure is of great significance to modern warfare.At the same time,as the main combat equipment in modern radar countermeasure,radar jammer has received more and more attention and research from various countries.With the rapid development of software-defined radio(SDR)technology and its great success in the application of wireless communication system,a new idea of designing radar jamming system based on the idea of software-defined radio(SDR)is gradually derived.This essay attaches importance to the realization process of the software radio technology used for radar jamming system,in which the hardware platform is based on the main architecture ADRV9009 + XC7Z100.Meanwhile,the radar jamming algorithm is implemented by means of the System Generator,SDK is uesd to initial ADRV9009,and serial communication is used as the real-time configuration of radar jamming parameters.Thereby the realization of radar jamming algorithm is accelerated,the applicability of radar jamming system is extended,and the flexibility of radar jamming platform is increased.Firstly,The principle of suppression jamming and deception jamming in radar active jamming is introduced,as well as radar active jamming is regarded as the research object of radar jamming system implementation.And then a detailed theoretical analysis of radio frequency noise interference,noise amplitude modulation interference,noise frequency modulation interference and noise phase modulation interference in suppression interference is carried out.In addition,full pulse storage loop-forward interference based on DRFM technology and intermittent sampling directly forward interference are analyzed theoretically.Secondly,the hardware platform of radar jamming system implementation is selected and designed.An analysis is conducted from two aspects of both requirements and performance of RF transceiver function module and the baseband signal processing module.ADRV9009 is used as the main chip of RF transceiver function to realize the functions like up and down frequency conversion,filtering,AD/DA conversion and gain control.Moreover,the XC7Z100 chip of Zynq-7000 series is used as FPGA chip for baseband signal processing.The generation and processing of radar interference signal are realized by adopting PL part,and the register configuration of ADRV9009 part is realized by PS part,as well as the selection of radar interference style and the configuration of interference parameters.Then,the whole design process of radar jamming system is explained,and serveral specific radar active jamming models are built and simulated.Using System Generator as the platform for FPGA design,builds four suppression jamming modes of RF noise interference,noise amplitude modulation,noise frequency modulation and noise phase modulation,and builds two deception jamming modes of full pulse storage loop-forwarding jamming and intermittent sampling directly forwarding jamming.At the same time,each of these jamming modes is simulated and analyzed,and compared with the simulation results of Matlab analysis.Finally,the software radio radar jamming system is mersured.Firstly,the RF transceiver function of the designed hardware platform is tested to show that the transceiver link of the hardware platform is correct.On this basis,the four suppression jamming modes and two deception jamming modes are tested to show the effectiveness of the built jamming model and realize the function of the radar jamming system.