说明：  多相滤波器组信道化接收机理论简介. 所谓数字滤波器组是指具有一个共同输入，若干个输出 .... 应用matlab 滤波器. 设计函数得到一阶数为96 阶的低通滤波器
(Polyphase filter bank theory channelized receiver profile. The so-called digital filter means with a common input, a number of applications .... matlab filter output. Designed to be a function of the order of 96-order low-pass filter)