filter

代码说明：

  matlab开发的滤波器有程序 使用简单方便 值需要改几个参数就可以实现对任何信号的滤波 程序中还就如了相关注解 有利于读者理解！(matlab filter developed procedure is simple and convenient to use the value of the need to change a few parameters can be achieved for any signal of the filtering process also, such as the relevant comments in favor of reading!)