说明：  本程序为脉冲压缩雷达回波产生与处理。包括产生相位编码目标回波、对回波进行I/Q解调、匹配滤波，分析多普勒频移对脉冲压缩的影响等。
(This procedure for pulse compression radar echo generation and processing, including the generation of phase coded target echo, echo IQ demodulation, matched filtering, analysis of the impact of Doppler shift on the pulse compression )