利用CLEAN算法计算信道的程序，程序里面的文本文件为模板信号与测试信号。此程序不仅可以用于提取信道冲击响应，还可以用来验证时间反演聚焦信号。-The CLEAN algorithm calculates a channel program, the program inside the text file as a template signal and the test signal. This program not only can be used to extract the channel impulse response can also be used to verify the time reversal focusing signal.