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介绍了一种用四片Ａ１００芯片级联实现的１２８位以内四相码脉冲压缩系统。四相码信号作为一种大时宽带宽积编码信号，其频谱降落、接收滤波器失配损失、距离取样损失等性能均优于矩形相位码，正被日益广泛地应用到雷达中去。这里设计了一种四相码脉冲压缩系统，运用ＭＣＳ１９６做主控制器，ＩＭＳＡ１００芯片做处理器，具有１０ＭＨｚ的流水处理速度，且可以在１２８位码以内任意改变码元序列，在不增加硬件设备的情况下，也可完成１２８位以内二相码的压缩。
A 128-bit four-phase pulse compression system with four A100 chip cascades is introduced. As a kind of large-time and wide-bandwidth-product coded signal, the four-phase code signal is superior to rectangular phase code for spectrum loss, receive filter mismatch loss and distance sample loss, and is being applied to radar more and more widely. Here a four-phase pulse compression system designed, the use of MCS196 host controller, IMSA100 chip processor, with 10MHz of water processing speed, and can arbitrarily change the symbol sequence within 128-bit code, without increasing the hardware device Case, but also can be completed within 128 two-phase code compression.