临界采样余弦调制滤波器组算法综述

在多速率数字信号处理系统中,余弦调制滤波器组受到广泛关注.它是一种常用的滤波器组,可以通过对低通原型滤波器优化并进行余弦调制得到分析和综合滤波器组,并且可以做到对信号的完全重构,具有计算复杂度低和设计简单等优点.该文综述了余弦调制滤波器组的发展过程及各种算法.

The Summary of Critically Sampled Cosine Modulation Filter Banks Algorithms

In the multirate digital processing system, the cosine-modulated bank is a commonly used filter bank and has received much attention. It can produce analysis and synthesis filters by optimizing the prototype filter and Cosine Modulating filter banks. It can also reconstruct signals. This filter bank has the advantages of simple calculation and design. This paper summarizes the development of cosine modulated filter banks and various related algorithms.