个人的小东东，大家多批评 呵呵、决定论决撒落脚点法撒 -a small Eastern, everyone criticized Oh, decided to withdraw the decision on purpose to withdraw Act

用于计算两个未知长度信号的褶积程序，它可以作为反滤波中的一个小模块使用-Used to calculate the two signals of unknown length convolution procedure, it can act as inverse filtering in a small module