极化雷达输出信杂噪比优化算法研究  

Research on Optimization Algorithm of Output Signal to Noise Ratio of Polarimetric Radar

作　　者：曾宝国 ZENG Baoguo(Chengdu Vocational and Technical College of Industry,Chengdu Sichuan 610213,China)

机构地区：[1]成都工业职业技术学院,四川成都610213

出　　处：《电子器件》2020年第6期1391-1395,共5页Chinese Journal of Electron Devices

基　　金：四川省教育厅科研课题项目(2018理工950)。

摘　　要：通过优化发射波形,可降低各种干扰和噪声对雷达场景信息的影响,从而提高雷达性能。以极化雷达为研究对象,在给定目标特性矩阵T(θ)、杂波参数和系统噪声υ条件下,采用最大化滤波器输出信杂噪比(Signal Clutter-plus-Noise Ratio,SCNR)为目标函数,通过优化设计发射波形与接收滤波器,实现了一种迭代优化方法。实验表明,相比现有的Pillai方法,该算法确保了极化雷达最大化输出SCNR的单调收敛性,提高了雷达的输出信杂噪比。In order to improve the performance of radar,it is necessary to reduce the influence of various interferences and noises on radar scene information,which can be achieved by optimizing the transmitting waveform.Under the condition of given target characteristic matrix T(θ),clutter parameters and system noiseν,an iterative optimization algorithm is presented for polarimetric radar,which is realized by optimizing the design of transmit waveform receive filter with maximizing filter output SCNR(Signal Clutter-plus-Noise Ratio)as the target function.Experiments show that,compared with the existing Pillai method,this algorithm ensures the monotonic convergence of maximizing the output SCNR of polarimetric radar,and improves the output SCNR of radar.

关 键 词：极化雷达 发射波形-接收滤波器 SCNR 波形优化设计 

分 类 号：TM92[电气工程—电力电子与电力传动]