一种新的调制型混合滤波器组设计算法  

A novel design for modulated hybrid filter banks

作　　者：蔡振浩[1] 于宏毅[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《电路与系统学报》2012年第4期41-45,40,共6页Journal of Circuits and Systems

基　　金：国家自然科学基金资助项目(60872043)

摘　　要：针对经典的准确重构混合滤波器组设计问题,提出一种调制型混合滤波器组(MHFB)的设计算法,推导了分析滤波器组系数矩阵的行列式与原型滤波器系数的解析关系,给出了具有普适性的综合滤波器组解的一般形式,并讨论了因果、稳定系统的设计方法。针对多通道HFB设计复杂的问题,提出一种FIR形式综合滤波器组的优化设计算法,适用于多通道HFB的设计。仿真结果验证了算法的有效性。A novel methodology for designing a complex exponential modulated hybrid filter banks （HFB） is proposed. The design procedure is formulated as deriving the relationship between the determinant of the analysis filter banks coefficient matrix and the prototype filter＇ coefficient vector, The common form of the synthesis filter banks are presented, furthermore the causal relationship and stability of system is also discussed. Designing multi-channel HFB is usually an intricacy work, a new approach especially for designing multi-channel FIR type synthesis filters are given. The simulation results verify the effectiveness of this algorithm.

关 键 词：调制型混合滤波器组 准确重构 矩阵行列式 超宽带 

分 类 号：TN911.72[电子电信—通信与信息系统]