广义镜像对称频率响应线性相位准正交滤波器组

A Gereralized Factorization Algorithm for Linear phase Paraunitary Filter Banks with Pairwise Mirror Image Responses

本文研究了镜像对称频率响应特性的线性相位准正交滤波器组 ,新算法利于设计的快速收敛 .信道数为偶数时 ,提出了一个广义线性乘积因子 ,新的格型结构带有附加的自由变量参数 ,可用来提高滤波器的特性 .信道数是奇数时 ,研究了新的结构因子 ,设计了奇数信道数的滤波器组 .

Generalized algorithms are proposed for linear phase paraunitary filter banks with pairwise mirror image frequency responses.The proposed algorithms promote fast convergence of design process.When the number of channels is even,a generalized linear factor is proposed that has additional free parameters and helps to improve the characteristics of the filters.When the number of channels is odd,a new structure is proposed.