任意采样频率转换滤波器的设计与实现  

Design and Implementation of Interpolation Filter for ArbitrarySamplingRate Conversion

作　　者：何健标[1] 

机构地区：[1]深圳职业技术学院电信学院通信系,深圳518055

出　　处：《计算机与数字工程》2016年第2期358-361,共4页Computer & Digital Engineering

基　　金："深圳市公共文化数字工程实验室(深圳市重点实验室)";"南山区移动互联技术公共服务平台"资助

摘　　要：提出了一种可以实现任意数字信号采样频率转换的数字内插滤波器设计方法。论文从转换滤波器的频域响应要求出发,设计等波纹内整数插滤波器作为原型,通过原型滤波器的时域插值和卷积得到任意采样频率转换滤波器。原型滤波器和时域插值滤波器可以精确控制采样频率转换滤波器的频率响应,是理想滤波器的最佳一致逼近,在各种相同响应时间的滤波器中性能最优。A method is presented to implement arbitrary digital signal sampling rate conversion filter.According to design requirement of frequency response,this method uses equiripple nyquist filter as prototype filter,and is obtained by timedomain interpolation and convolution.The prototype filter and time-domain interpolation filter endow the ability to accurately control its frequency response under various circumstances.And the arbitrary sampling rate conversion filter provides not only the best performance among all kinds of filters with the same response time,but also the best Chebyshev approximation of ideal filter.

关 键 词：任意频率转换 数字内插 等波纹奈奎斯特滤波器 Sinc滤波器 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]