一种基于MMF-FRM的低复杂度信道化接收机结构  

A Low Complexity Channelized Receiver Structure Based on MMF-FRM

作　　者：张文旭[1,2] 崔鑫磊 陆满君 ZHANG Wen-xu;CUI Xin-lei;LU Man-jun(School of Information and Communication Engineering,Harbin Engineering University,Harbin,Heilongjiang 150001,China;Key Laboratory of Advanced Marine Communication and Information Technology,Ministry of Industry and Information Technology,Harbin Engineering University,Harbin,Heilongjiang 150001,China;Shanghai Radio Equipment Research Institute,Shanghai 201109,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学先进船舶通信与信息技术工业和信息化部重点实验室,黑龙江哈尔滨150001 [3]上海无线电设备研究所,上海201109

出　　处：《电子学报》2023年第3期720-727,共8页Acta Electronica Sinica

基　　金：国防基础科研计划重点项目(No.JCKY2017203B060);黑龙江省自然科学基金(No.LH2020F020);中央高校基本科研业务费资助项目(No.3072021CF0816)。

摘　　要：为实现时域重叠信号的全概率接收和跨信道信号重构,降低窄过渡带信道化结构的复杂度,提出一种基于调制屏蔽滤波器频率响应屏蔽(Modulation Masking Filter Frequency Response Masking,MMF-FRM)技术的信道化接收机结构.通过对原型屏蔽滤波器进行调制得到两个分支屏蔽滤波器,给出了基于MMF-FRM的窄过渡带滤波器设计方法.推导出一种基于MMF-FRM的低复杂度信道化接收机结构,该信道化结构解决了多相分解受FRM(Frequency Response Masking)滤波器组限制的问题,并分析了该结构的有限字长性质和纹波系数.用Xilinx System Generator进行了硬件实现与仿真,在采样速率为1 GHz,信道数为8的条件下,提出的信道化接收机结构比多相信道化结构节省74.1%的乘法器资源,比FRM信道化结构节省13.5%的乘法器资源.In order to realize the full probability reception of time-domain overlapping signals and cross-channel sig⁃nal reconstruction,reduce the complexity of channelized structure with narrow transition bandwidth,a channelized receiver structure based on modulation masking filter frequency response masking(MMF-FRM)is proposed.Two branch masking filters are obtained by modulating the prototype masking filter,and the MMF-FRM based narrow transition bandwidth filter design method is presented.A low complexity channelized receiver structure based on MMF-FRM is derived.This structure solves the problem of polyphase decomposition limited by frequency response masking(FRM)filter bank,and the finite word length property and ripple of this structure are analyzed.The hardware implementation and simulation are carried out using the Xilinx System Generator.Under 1 GHz sampling frequency and 8 channels condition,the proposed channelized receiver structure saves 74.1%multiplier resources compared with the polyphase channelized receiver structure,and 13.5%compared with the FRM channelized structure.

关 键 词：宽带数字接收机 多相信道化 窄过渡带 频率响应屏蔽 调制屏蔽滤波器 

分 类 号：TN851[电子电信—信息与通信工程]