摘要
基于GPS辐射源的无源雷达,利用目标对非合作GPS信号的反射工作,具有很强的反侦察、抗隐身及生存能力。由于基于GPS的无源雷达系统,回波信号非常弱,故回波信号的干扰抑制及有效信号的获取是其信号处理非常重要的内容。对基于GPS辐射源的无源雷达回波信号中的直达干扰采用自适应滤波的方法进行抑制,对多径干扰提出采用功率倒谱分析法进行分离。在理论研究的基础上给出仿真结果,结果表明,所采用的方法能很好地达到干扰的抑制,为系统的实用提供了仿真依据。
Passive radar system based on non-cooperative signal of GPS has strong abilities of anti-detection, anti-hiding and surviving. Because of the weakness of the reflected signal, the interference mitigation and the acquisition of the useful signal are very important in its signal processing. This paper researched on methods of the anti-direct noise interference mitigation and the anti-multi-path interference mitigation, and used adaptive filters in anti-direct noise interference and power cepstrum in anti-multi-path interference respectively. Simulations show that methods taken in the paper are effective. This paper can provide supports for applications.
出处
《电子设计工程》
2011年第8期103-105,109,共4页
Electronic Design Engineering
基金
湖南省怀化学院2008年一般项目资助(HHUY2008-05)
