全极化信息在箔条假目标鉴别中的应用研究

摘要

Polarization information plays an important role in anti chaff jamming and preventing missile from missing the target.Firstly,two polarization ratios are defined,and the polarization ratio characteristics of chaff decoy and airplane are analyzed.Then,a new method is proposed to discriminate the chaff cloud using the two polarization ratios,and the identification algorithm is designed.The simulation results show that the new method could get more than 95％ discrimination ratio to the chaff decoy.Thus,the feasibility and effectiveness are proved.%极化信息在抗箔条干扰,防止导弹脱靶等方面具有重要的应用价值.首先定义了共极化比和垂直共交极化比,分析了箔条假目标和飞机目标的极化比特性.然后针对均匀取向箔条云,提出了以共极化比和垂直共交极化比为联合鉴别量的箔条假目标鉴别新方法,并设计了鉴别算法.对某典型飞机目标的仿真结果表明,该鉴别方法对箔条假目标的鉴别率能达到95％以上.仿真结果证明了该鉴别算法的可行性和有效性.