Improved design of reconfigurable frequency response masking filters based on second-order cone programming  

基于二阶锥优化的改进可重构频罩滤波器设计(英文)

作　　者：吴尘[1] 徐新洲[1] 黄程韦[2] 赵力[1] 

机构地区：[1]东南大学水声信号处理教育部重点实验室,南京210096 [2]苏州大学物理科学与技术学院,苏州215006

出　　处：《Journal of Southeast University(English Edition)》2014年第4期422-427,共6页东南大学学报（英文版）

基　　金：The National Natural Science Foundation of China(No.61231002,61273266,61375028);the Ph.D.Programs Foundation of Ministry of Education of China(No.20110092130004)

摘　　要：In order to improve the design results for the reconfigurable frequency response masking FRM filters an improved design method based on second-order cone programming SOCP is proposed.Unlike traditional methods that separately design the proposed method takes all the desired designing modes into consideration when designing all the subfilters. First an initial solution is obtained by separately designing the subfilters and then the initial solution is updated by iteratively solving a SOCP problem. The proposed method is evaluated on a design example and simulation results demonstrate that jointly designing all the subfilters can obtain significantly lower minimax approximation errors compared to the conventional design method.为了提高可重构频罩滤波器的设计结果,提出了一种基于二阶锥优化的改进设计方法.不同于传统的将所有子滤波器分开设计的方法,该方法将所有期望的设计模式纳入到设计目标中来联合设计所有子滤波器.首先,单独设计所有子滤波器以获得一个初始结果;然后,迭代求解一个二阶锥优化问题,以更新初始结果.通过一个设计实例来验证所提出算法的有效性.仿真结果表明,相比于传统的设计方法,将所有子滤波器联合设计能够显著降低minimax准则的设计误差.

关 键 词：frequency response masking FRM filter optimal design reconfigurability second-order cone programming SOCP 

分 类 号：TN911.72[电子电信—通信与信息系统]