两点源作用下被动导引头测向性能仿真与分析

Simulation and analysis of passive radar seeker direction-finding performance with decoying of dual sources

两点源诱偏是对抗反辐射导弹的常用方法,传统的被动导引头的测向方法都无法正确识别判定两点源中的目标。采用一种可以准确辨别并跟踪两点源的测向方法和数据处理方法,即比相比幅测向系统和多次采样数据处理法,阐述了这种测向系统的基本原理,并且对处理后的信号测向性能进行了分析和仿真,以及在不同信噪比下的性能作出了比较和分析。

Dual sources decoying is one of common method of counteracting anti-radiation missile, but the traditional direction-finding method of passive radar seeker can not recognize and judge each target of dual sources correctly. This paper used a direction-finding method which can recognize target of dual sources correctly called phase-compare＇ and amplitude-compare direction-finding, and a multiple sampling data processing method. This paper described basic principle of phase-compare and amplitude-compare direction-finding system, analyzed and simulated the processod signal direction-finding performance, and mode comparison and analysis between that with different signal-noise ratio.