一种跟踪雷达相位编码信号的多普勒补偿方法

摘要

在M序列码信号脉冲压缩中存在着多普勒频率敏感问题，需要对多普勒频率进行补偿。在分析多普勒敏感性原因的基础上，提出了一种跟踪雷达补偿算法，可以同时补偿脉内多普勒和脉间多普勒，消除目标速度的影响，适用于高速远距离目标，易于工程实现且不影响后继动目标处理。通过MATLAB仿真证明了这一算法的正确性与可行性。%Doppler frequency compensation is necessary in phase⁃coded signal pulse compression because of Doppler frequency sensitivity.Based on analyzing Doppler frequency sensitivity,a tracking radar compensation algorithm is proposed,it can compensate both Doppler in pulse and Doppler between pulses and eliminate the affect of moving target. It is applicable to high⁃speed and distant target.It’s easy to implement and doesn’t affect forward moving target processing.The MATLAB simulation show that this method is ef⁃fective and feasible.