信道化结构的无乘法器优化与实现  

Multiplier-free Optimization and Realization of Channelized Structure

作　　者：崔鑫磊 陆满君 张文旭[1,3,4] 何俊希 CUI Xin-lei;LU Man-jun;ZHANG Wen-xu;HE Jun-xi(School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang China;Shanghai Radio Equipment Research Institute,Shanghai 201109,China;Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space,Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,Jiangsu China;Key Laboratory of Advanced Marine Communication and Information Technology,Ministry of Industry and Information Technology,Harbin Engineering University,Harbin 150001,Heilongjiang 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]上海无线电设备研究所,上海201109 [3]南京航空航天大学电磁频谱空间认知动态系统工信部重点实验室,江苏南京211106 [4]哈尔滨工程大学工业和信息化部先进船舶通信与信息技术重点实验室,黑龙江哈尔滨150001

出　　处：《制导与引信》2020年第2期43-50,共8页Guidance & Fuze

摘　　要：针对宽带接收机在拥有大的动态范围与高灵敏度的同时需要降低资源占用的问题,基于多相滤波信道化结构和频率响应屏蔽技术,将正则有符号数编码技术和改进动态旋转因子算法用于无乘法器的信道化结构优化设计中,将乘法器资源的占用转化为移位器与加法器的占用,提高硬件实现的效率、降低延迟。仿真结果表明:无乘法器算法可以有效地降低乘法器资源占用,提高信号处理性能。Wideband receiver has large dynamic range and high sensitivity and needs to reduce the resource consumption.On the basis of polyphase filtering channelized structure and freq uency response masking technology,canonic signed digit(CSD)coding technology and improved dynamic twiddle factor algorithm are used to optimize the multiplier-free channelized structure.The resource utilization of multipliers is converted to that of shifter and adder.The sufficiency of hardw are implementation is improved,and the system delay is red uced.Simulation results show that the multiplier-free algorithm can effectively reduce the resource utilization of multiplier and improve the performance of signal processing.

关 键 词：宽带数字接收机 信道化 正则有符号数编码 动态旋转因子 

分 类 号：TN911[电子电信—通信与信息系统]