余数系统在软件无线电中的应用  

Applications of RNS in SDR Systems

作　　者：马上[1] 胡剑浩[1] 凌翔[1] 

机构地区：[1]电子科技大学通信抗干扰国防重点实验室,成都610054

出　　处：《电信科学》2009年第2期84-89,共6页Telecommunications Science

基　　金：国家"863"计划基金资助项目(No.2007AA01Z291)

摘　　要：余数系统由于其良好的并行特性,在乘加密集型的数字信号处理系统中得到了广泛关注,而这正是构建软件无线电系统的关键所在。本文在介绍RNS基本理论的基础上,结合已有的研究成果,指出了基于RNS的数字信号处理系统关键单元及研究现状,并提出了一种基于RNS数值表征系统的DSP系统结构。结合冗余RNS的容错特性和并行性,介绍了一种基于RNS的多路并行正交通信系统,并指出了其在阵列SDR平台和航天级SDR平台设计中的应用。可以预见,在构建未来复杂SDR系统中,RNS将得到广泛应用。The residue number system is a carry-free system and allows a high degree of concurrency. Due to this property, the RNS has received considerable attention in digital signal processing systems with intensive additions and multiplications. And these DSP modules are important for software definition radio systems. In this paper, we first introduce the fundamental concept of RNS and the recent research about it. Then we point out the key units of RNS-based DSP systems and present a DSP architecture based on RNS. Furthermore, combined with the properties of fault-tolerance and parallelism of RNS, we introduce RNS-based parallel orthogonal signaling system. Finally, we indicate the applications of RNS in the array-based SDR and aeronautic signal processing platforms.

关 键 词：余数系统 软件无线电 数字信号处理 并行正交通信 容错 

分 类 号：TN924[电子电信—通信与信息系统] TP301.6[电子电信—信息与通信工程]