通用的雷达目标RCS统计建模方法  

General Approach for Statistical Modeling of Radar Target RCS

作　　者：张晨新[1] 林存坤 周成 宗彬锋[4] 丁德文[5] ZHANG Chen-xin LIN Cun-kun ZHOU Cheng ZONG tlln-feng DING De-wen(AFEU, Air and Missile Defense College, Shaanxi Xi＇ an 710051, China PLA, No. 95972 Troop, Gansu Jiuquan 735018, China The Communication Navigation and Command Automation Institute of the Air Force Equipment Academy, Beijing 100085, China PLA, No. 94710 Troop, Jiangsn Wuxi 214000, China PLA, No. 94259 Troop, Shandong Penglai 265600 ,China)

机构地区：[1]空军工程大学防空反导学院 [2]中国人民解放军95972部队 [3]空军装备研究院通信所 [4]中国人民解放军94710部队 [5]中国人民解放军94259部队

出　　处：《现代防御技术》2017年第5期114-119,共6页Modern Defence Technology

摘　　要：针对传统的雷达目标RCS起伏统计模型都是基于厘米波频段RCS建立的问题,提出了一种更为通用的基于混合正态分布的RCS统计建模方法。对典型隐身飞机的仿真数据和某型教练机的实测数据进行统计分析,拟合优度检验结果表明:混合正态分布在米波频段和厘米波频段均能实现最佳的拟合优度。研究成果可用于拓展雷达检测理论,为雷达总体设计提供理论支撑。For the problem that conventional RCS（ radar cross section） fluctuation models are built from RCS on centimeter wave frequency band,a general statistical modeling approach based on Gaussian mixture distribution is proposed. Statistical analysis on simulated data and measured data is investigated.The results of goodness-of-fit indicate that the Gaussian mixture distribution can acquire a better performance both on metrewave band and centimeter wave band. The fitting parameters can be estimated directly by curve fitting tools in Matlab. The research results may be used to develop radar detection theory and provide theoretic support for radar design.

关 键 词：雷达目标 雷达散射截面 RCS起伏模型 统计建模 混合正态分布 拟合优度检验 

分 类 号：TN955[电子电信—信号与信息处理]