High-power Non-coherent Radar Target Detection And Jamming Simulation Research

High-power non-coherent radar has the characteristic of integrating detection and interference.It can guide the transmitting system to irradiate the target with high-power microwaves while detecting the target,causing interference to the normal operation of the enemy’s radar system and communication link system.Due to the high power and narrow pulses of high-power non-coherent radars,this type of radar has longer detection capabilities and higher range resolution,and has broad application prospects in the field of electronic countermeasures and target detection.This paper mainly studies the target detection and jamming effects of high-power non-coherent radars.Aiming at the non-coherent characteristics of the transmitted signal of this type of radar,the target detection method of this system is studied,and simulated the impact of high-power microwave pulses on synthetic aperture radar(Synthetic Aperture Radar,SAR)imaging results The main tasks completed are as follows:The target signal detection method of high-power microwave pulse radar is studied to improve the target detection performance of this system.According to the generation principle and non-coherent characteristics of high-power microwave signals,a high-power microwave pulse radar transmitting signal and echo signal model is constructed.And on this basis,studied the target detection method of this kind of radar echo,focusing on analyzing a phase compensation method to realize the multi-pulse coherent accumulation and improve the signal-to-noise ratio of the target echo.The target detection processing flow of high-power microwave pulse radar is realized and verified on the semi-physical platform.A hardware-in-the-loop simulation platform for highpower microwave pulse radar signal processing is designed,which includes two devices,a radar echo simulator and a signal acquisition processor.And on the DSP of the signal acquisition processor,the multi-core synchronous execution method is adopted to efficiently realize the target detection processing flow of this system radar.Through the target echo simulation playback and synchronous acquisition experiment,the software and hardware functions of the platform and the correctness of the signal processing flow are verified.The impact of high-power microwave pulses emitted by high-power non-coherent radars on imaging radars is explored.First,a simulation model of SAR echo under suppressed jamming pulse is constructed,and on this basis,the interference mechanism of suppressed jamming pulse on SAR imaging is analyzed.Finally,the interference effects of high-power microwave pulses with different parameters on SAR imaging are simulated.