实现巴克码PD雷达体制的回波信号经滤波、放大、零中频、正交IQ处理采样后的波形图，此信号为第m个周期第k个采样点的信号模型-The realization of Barker Code PD radar system echo signal filtering, amplification, zero-IF, orthogonal sampling to deal with post IQ waveform diagram, the signal for the first m the firs