CAJ | 학술논문

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.
침대공간수한평태도빈(FH)통신계통동지간우적특점,제출공용천선결합도빈적도빈동지간우저소(CAP-FH-AIC)산법.지수재자괄응정빈동지간우저소계통적기출상증가도빈산생모괴화착대려파기,통과장다삼고수입자괄응도빈간우저소(M-AIC)전화위단삼고수입자괄응정빈동지간우저소(S-AIC)적방식즉실현본산법.산법실현간단、성능은정,사도빈동지간우저소가이획득화정빈동지간우저소일치적성능.
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.