本程序为回波抵消程序，程序中附有解释，很明了，并能到达到消除回波的效果-This procedure for the echo cancellation process, accompanied by explanation of procedures, it is clear, and able to achieve the elimination of echo effect

matlab仿真。 对m序列和互补码序列的仿真：分别对m序列和四相互补码序列的发射，回波，和脉冲压缩进行了仿真。 同时包含线性调频信号（LFM）和m序列以及简单单脉冲的模糊函数仿真的文件。-The matlab simulation. m sequence and complementary code sequence simulation: four-phanse complementary code and m sequence code s emission, echo, a