针对分布式多输入多输出(MIMO)雷达多子站回波包络对齐问题,提出了一种基于正交频分调制(OFDM)波形的分布式MIMO雷达的包络对齐方法.首先建立了该雷达的信号模型,然后根据不同子阵回波距离走动的差异,提出了回波包络走动校正方法,并给出了相应的适用条件.仿真实验测试了不同信噪比、不同多普勒频率下的包络对齐效果,证实了提出方法的有效性. Aiming at the envelope alignment of multiple MIMO echo radar sub-stations, an envelope registration method based on Orthogonal Frequency Division Modulation (OFDM) waveform for distributed MIMO radar is proposed. Firstly, Radar signal model, and then based on different sub-array echo distance walk differences, proposed echo envelope walk correction method, and gives the appropriate conditions for the application.Simulation experiments tested different signal to noise ratio, different Doppler frequency Under the envelope alignment effect, confirmed the effectiveness of the proposed method.