共用天线结合导频的自适应跳频同址干扰抵消  

Adaptive Frequency Hopping Co-Site Interference Cancellation with Community Antenna and Pilot

作　　者：袁小刚[1] 黄国策[1] 牛红波[1] 郭兴阳[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《北京邮电大学学报》2009年第5期119-123,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(60802053);中国博士后科学基金项目(20070421136)

摘　　要：针对空间受限平台跳频(FH)通信系统同址干扰的特点,提出共用天线结合导频的跳频同址干扰抵消(CAP-FH-AIC)算法.只需在自适应定频同址干扰抵消系统的基础上增加导频产生模块和窄带滤波器,通过将多参考输入自适应跳频干扰抵消(M-AIC)转化为单参考输入自适应定频同址干扰抵消(S-AIC)的方式即实现本算法.算法实现简单、性能稳定,使跳频同址干扰抵消可以获得和定频同址干扰抵消一致的性能.A method of frequency hopping（FH） co-site interference cancellation using community antenna and pilot（CAP-FH-AIC） is proposed according to the analysis of the characteristic of the FH co-site interference.The structure of the canceller is transformed from multi-reference adaptive FH co-site interference cancellation（M-AIC） to single-reference adaptive fixed-tuned co-site interference cancellation（S-AIC） only by adding an additional generator of the pilot signal and an additional band-bass filter.It can realize the cancellation of the FH co-site interference and get almost the same performance of the adaptive fixed-tuned co-site interference cancellation. The theoretical inference and simulation confirm that the algorithm can get the advantage of steady performance in FH co-site interference suppression.

关 键 词：自适应干扰抵消 同址干扰 跳频通信 导频 共用天线 

分 类 号：TN911.4[电子电信—通信与信息系统]