脉冲压缩过程，包括回波信号及参考信号模型构建以及频谱分析，最后进行脉冲压缩，并对数据进行归一化处理。程序二为雷达多普勒测速matlab程序。(The pulse compression process, including echo signal and reference signal model construction and spectrum analysis, finally performs pulse compression and normalizes the data.The