线性调频脉冲压缩雷达视频回波模型

Research on Simulation of LFM Pulse Compression Radar Return

对于线性调频脉冲压缩雷达视频回波的模拟,目前使用方法最多的是硬件实现,即根据中频回波模型获得中频回波后,依次通过硬件实现的匹配滤波器等接收部件获得视频回波。若用软件实现这一流程,则由于卷积、相关等运算导致效率极低。推导出了脉冲压缩后的雷达视频回波模型,可以直接根据该模型获得视频回波,减少了运算量,提高了效率,使软件实现实时脉冲压缩雷达视频回波模拟成为可能。最后还对该模型进行了仿真分析,验证了该模型的正确性和实用性。

Hardware is mostly used to realize simulation of LFM pulse compression radar return nowadays, which gets the video return by using the intermediate frequency return processed in some receiver components such as pulse compression filter, and etc. If this flow is realized by software, because of some complex computation such as correlation and so on, the efficiency is low. The video return model after pulse compression is derived in this thesis, which reduces the computation burden, improves the efficiency and mades it imaginable to realize real-time simulation of LFM pulse compression radar return through software.