Performance test and algorithm verification are indispensable for radar system evaluation.In order to ob-tain accurate evaluation results,radar echo simulator was used to test the availability and stability of signal process-ing algorithms.The traditional radar echo simulator was mostly based on DSP+FPGA architecture,which was ex-pensive and difficult to upgrade and maintain.Through modeling digital phased array radar,a radar echo simulator was designed in this paper based on CPU+GPU platform,which solved the problem of upgrading and maintaining.In the laboratory,a complete simulation verification system was built with radar wave control,signal processing,preprocessing,data processing and terminal.After system joint adjustment verification,the simulator can simulate various working modes of radar.
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