电讯技术Issue(2)：156-162,7.DOI:10.3969/j.issn.1001-893x.2015.02.008
短波FH/OFDM通信系统抗跟踪式干扰性能分析
Tracking Interference Suppression Performance Analysis of Shortwave FH/OFDM Communication System
摘要
Abstract
Tracking interference is an effective interference patterns for a shortwave multi-carrier frequency-hopping(FH) communication system. In this paper,the relationship between sub-channels interference and orthogonal frequency division multiplexing( OFDM) symbol error rate is analyzed,and the part time pa﹣rameters of best tracking interference are obtained by simulation,the system bit error rate( BER) in partial band jamming and the multi-tone interference is derived under Gaussian channel according to the relation﹣ship between OFDM spectrum and interference spectral,and the BER performance of anti-tracking interfer﹣ence is analyzed. Simulations show that:the BER is related not only with the tracking interference time win﹣dow,but also with the partial-band interference factor and signal to interference ratio;there is interference equivalent region between the partial-band interference and the part-time interference;when the factor of multi-tone jamming is greater,the effect of the time-window on system is greater,the BER is related not only with the tracking interference time window,but also with the multi-tone interference factor and signal to interference ratio,and the effect of multi-tone interference on OFDM symbol is more critical than that of partial band interference;by combining FH and OFDM,increasing the carrier FH rate and reducing the im﹣pact of tracking interference on OFDM symbols,multi-tone interference can be eliminated effectively.关键词
短波跳频/多载波调制/跟踪式干扰/部分频带干扰/多音干扰/抗干扰性能分析Key words
shortwave frequency hopping/multi-carrier modulation/tracking interference/partial band in﹣terference/multi-tone interference/interference suppression performance analysis分类
信息技术与安全科学引用本文复制引用
甘海慧,熊俊俏,曹新莉,陈爱杰..短波FH/OFDM通信系统抗跟踪式干扰性能分析[J].电讯技术,2015,(2):156-162,7.基金项目
湖北省自然科学基金资助项目(2014CKC524) （2014CKC524）
武汉工程大学科研基金资助项目(K201421)Foundation Item:The Natural Science Foundation of Hubei Province(2014CKC524) （K201421）
The Scientific Research Foundation of Wuhan Institute of Technology(K201421) （K201421）
