In this paper,we consider the factorization of polyphase matrix of a class of orthogonal symmetric multi-band wavelet filter banks,and construct a class of filter bank with freedom parameter.

• 本文考滤了一类多带正交对称小波滤波器对应多相矩阵分解结构,系统地构造了一类具有自由参数多带小波滤波器簇,以4带小波为例得到了用参数角表示的一类正交对称滤波器序列。