一种新的LPI信号的截获方法  

A novel interception of LPI signals

作　　者：袁伟明[1] 王敏[1] 吴顺君[1] 黄磊[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《电波科学学报》2005年第1期73-76,共4页Chinese Journal of Radio Science

基　　金：重点实验室基金资助项目(No.51431050103ZS0106)

摘　　要：提出了一种新的低截获概率(LowProbabilityofIntercept—LPI)信号的截 获方法,该方法基于滤波器组(FilterBank)和Wigner Ville分布(WVD)联合处理算 法。然后把该方法用于跳频(FH)信号的检测及参数估计,并给出了估计跳周期和跳 频频率的方法。仿真结果和性能分析表明,和WVD以及SPWVD变换相比该方法 大大减少了交叉项和噪声的影响,具有很好的时频聚集性。A novel interception of LPI signals is presented, which based on The combination of a filter bank and Wigner Ville Distribution. Detection and parameter estimation of FH signal are discussed, then the algorithms for estimating hop duration and hopping frequencies are given. Finally simulation results and performance analysis illustrate that cross terms as well as noise are reduced significantly by this method, compared with WVD and SPWVD. High time frequency concentration is obtained.

关 键 词：滤波器组 WVD 低截获概率信号 跳频信号 

分 类 号：TN911.7[电子电信—通信与信息系统]