基于ICS技术的数字直放站系统设计  

Design of Digital Repeater System based on ICS Technology

作　　者：吴兵[1] 纵瑞方[1] 李武建[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《通信技术》2013年第1期32-34,共3页Communications Technology

摘　　要：ICS数字直放站是直放站系统发展的热点领域和重要方向。这里介绍了基于LMS算法的干扰抵消系统的基本原理,根据软件无线电基本理论给出了系统的硬件具体实现,基于FPGA平台描述了系统各软件模块的实现方法,测试结果表明干扰抵消比高达30 dB,通道时延小于8 ns。该系统通用性和扩展性强,可以移植到各种同频干扰抵消系统中。ICS digital repeater is the hot-development field and the important direction of repeater system. This paper describes the basic principle of interference cancellation system based on LMS algorithm and the detailed system hardware realization based on software radio theory. The realization method of the software module based on FPGA platform is also discussed. The experiment results show that the interference cancellation rate is more than 30dB and the time delay less than 8ns. This system has the advantages of strong generality and expansibility.

关 键 词：干扰抵消系统 数字直放站 软件无线电 

分 类 号：TN914.34[电子电信—通信与信息系统]