一种改进的相位编码信号多普勒补偿方法

An improved Doppler Compensation Method for Phase-coded Signal

针对相位编码信号多普勒频率敏感以及越距离单元走动问题,本文提出一种改进的多普勒频率补偿方法,该方法通过预设模糊重数,对回波信号进行多普勒补偿及Keystone变换处理,实现目标回波信号的有效相参积累及速度解模糊。采用回波仿真数据进行实验,实验结果验证了本方法的有效性。

The phase-coded signal is Doppler sensitivity and the echo of moving target exist range migration problem. In order to solve these problems, this paper proposes an improved Doppler compensation method. The method adopts Doppler frequency compensation and Keystone transform by preset velocity ambiguity factor. The method can achieve coherent integration of target echo signal and velocity estimation. The targets echo signal is simulated and experimented. The results of the experiment indicate that the method is effective.