一种基于盲源分离的同频干扰抑制方法  

A Same Frequency Interference Suppression Method Based on Blind Source Separation

作　　者：吴甜[1] 钱孝桃[1] WU Tian;QIAN Xiaotao

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《今日自动化》2024年第5期129-131,共3页Automation Today

摘　　要：基于调频广播的无源探测系统具有反隐身、抗干扰等许多优点,但由于体制的特殊性,其极易受到其他同频电台的干扰,严重影响系统性能。针对这种情况,文章提出了基于时间平滑二阶协方差矩阵分解的盲源分离同频干扰抑制方法。仿真结果表明,该算法在干信比很高的情况下仍然具有较好的鲁棒性。The passive detection system based on FM broadcasting has many advantages such as anti stealth and anti-interference.However,due to the special nature of the system,it is extremely susceptible to interference from other same frequency radio stations,which seriously affects the system performance.In response to this situation,the article proposes a blind source separation co frequency interference suppression method based on time smooth second-order covariance matrix decomposition.The simulation results show that the algorithm still has good robustness even when the interference to signal ratio is very high.

关 键 词：无源探测 同频干扰 盲源分离 

分 类 号：TN03[电子电信—物理电子学]