雷达目标动静态RCS特性差异分析  

Analysis for Differences between Dynamic and Static RCS Characteristics of Radar Target

作　　者：戴崇[1] 徐振海[1] 肖顺平[1] 

机构地区：[1]国防科技大学电子信息系统复杂电磁环境效应国家重点实验室,湖南长沙410073

出　　处：《信号处理》2013年第9期1256-1263,共8页Journal of Signal Processing

摘　　要：工程上常用静态RCS数据作为建立起伏目标回波信号模型的样本,其准确性和合理性亟待验证。文中基于空气动力原理和电磁计算数据对隐身飞机的动态RCS特性进行了仿真,获取了F-117A型隐身攻击机侧站盘旋一周的动态数据。从统计特征参数、相关特性和起伏模型等方面对比了动静态RCS特性。着重分析了动静态RCS特性在起伏目标检测性能评估上的差异。结果表明静态RCS特性难以反映目标运动时真实的雷达特性,利用静态数据描述目标特性可能导致错误结论。The static RCS data is usually used for establishing fluctuating targets＇ echo model in engineering, the accu- racy and rationality of it urgently need verification. The dynamic RCS characteristics of F-117A stealthy attacker＇ s spiral flying was acquired based on aerodynamic theory and electromagnetic calculation in this paper. Two kinds of data were com- pared on statistical parameters, correlation characteristics and fluctuating model. The differences between dynamic and stat- ic RCS characteristics on evaluation of fluctuating targets ＇ detection ability were analyzed. The results show that it＇ s hard for static data to reflect true radar characteristics when target is moving, using static data to describe target characteristics may lead false conclusion.

关 键 词：目标特性 雷达散射截面 动态数据 起伏模型 检测性能 

分 类 号：TN955.2[电子电信—信号与信息处理]