摘要
目前利用非合作辐射源的被动雷达系统得到了前所未有的重视。论述了一种基于第二代手机信号(GSM)的被动雷达定位方法,详细地分析了GSM信号特征。重点研究了系统的关键技术之一直达波抑制,提出一种开环式直达波自适应对消方法——扩展关联法(ECA)应用于GSM被动雷达系统,并与传统的抑制方法做了比较,仿真结果验证了所提方法的有效性。
Passive location systems using non-cooperative illuminator obtain unprecedented attention.A passive location method using GSM signal is proposed.Firstly the character of the illuminator GSM is an-alyzed,then direct signal cancellation,as the key skill of this system,is studied.A new method named Expanding Correlation Algorithm（ECA） is proposed to offset the direct signal.Compared with the tradi-tional one,this algorithm is shown to be more effective by the simulation.
出处
《中国电子科学研究院学报》
2011年第5期499-502,共4页
Journal of China Academy of Electronics and Information Technology
