宽带干扰信号消除分析  

Analysis on Wideband Band Interfering Signal Cancellation

作　　者：高鑫[1] 何方敏[1] 孟进[1] 李毅[1] 苟川杰 

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,湖北武汉430033

出　　处：《通信技术》2016年第8期975-979,共5页Communications Technology

基　　金：国家自然科学基金(No.61201055)~~

摘　　要：宽带干扰信号在空间信道内的时延和幅度波动较大,使得传统的自适应干扰对消技术难以将其消除。为了分析无法对消的原因,推导了宽带信号对消流程,探讨干扰信号的带宽和时延因素对干扰消除效果的影响,得到了对消效果与这些参数的解析关系,并对对消流程做了仿真分析,仿真结果表明:宽带干扰信号的对消效果与幅度起伏特性、时延起伏特性和带宽有关,幅度起伏特性和时延起伏特性越小、带宽越窄,对消效果越好。The large time delay and amplitude fluctuation of wideband interference signal in space channel makes, the traditional adaptive interference cancellation technology hard to eliminate the interfering signal. In view of this situation, the wideband signal cancellation process is derived, discusses the impact of bandwidth and time-delay factors on noise-canceling effect explored, and the analytic relationships of between the cancellation effect and these parameters also acquired. And the simulation analysis on cancellation process indicates that the effect of wideband interference signal is closely related to the amplitude fluctuation, time delay and bandwidth, the smaller the amplitude and time delay, the narrower the bandwidth, the better the effect.

关 键 词：导频信号 干扰对消 仿真 宽带干扰 

分 类 号：TN911.4[电子电信—通信与信息系统]