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Issue:
Simulation Method of Dynamic RCS for Non-cooperative Targets
Author(s):
DAI Chong
,
XU Zhenhai
,
XIAO Shunping
Pages:
1374
-
1384
Year:
2014
Issue:
5
Journal:
Acta Aeronautica ET Astronautica Sinica
Keyword:
non-cooperative target
;
dynamic characteristics
;
radar cross section
;
aerodynamics
;
radar theory
;
Abstract:
针对非合作目标难以开展动态测量的问题,根据空气动力学原理提出了一种非合作目标动态雷达散射截面(RCS)仿真方法.该方法首先建立测量背景下典型飞行航路模型,然后计算雷达视线在机体坐标系上的时变姿态角.根据姿态角开展电磁计算,获得F-117A隐身攻击机在侧站平飞、背站拉起、对站俯冲、侧站盘旋4种航路下的动态RCS数据.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,而文中方法获取的动态RCS数据可以提高结论的完整性和可信度.
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