高速运动目标ISAR回波的基带模拟

ISAR Echo Baseband Simulation of High Velocity Moving-target

分析了高速运动目标对采用大时带积信号的ISAR雷达回波的影响,然后建立回波信号模型,产生仿真试验结果;最后,基于散射中心模型构造动目标,产生给定动态参数下的动目标ISAR回波信号数据,并结合带有D/A的FPGA开发板产生动目标的ISAR回波信号,为ISAR的研究和数据处理提供了信号源。

The influence caused by moving targets was analyzed when large bandwidth and long duration signal was taken as radar emission signal,then echo signal model was built,and simulation test results were given;At last,moving-target was constructed based on scattering center model,ISAR moving-target echo data was produced on the specific dynamic parameters,and then ISAR echo signal could be generated combined with FPGA development board with D/A converter,which could provide signal source for ISAR study and data processing.