非合作目标动态RCS仿真方法

doi:10.7527/S1000-6893.2013.0411

Abstract

Abstract:

It is hard to implement dynamic measurements of non-cooperative targets. A simulation method of dynamic radar cross section (RCS) is proposed in this paper in accordance with aerodynamic theory. After a typical track model of the dynamic measurement is built, the real-time attitude angle of the radar line of sight is calculated in the target coordinate system. The dynamic RCS data of an F-117A stealthy attacker under typical tracks are obtained using the attitude angle by means of electromagnetic calculation. Typical tracks included level flight, pull up, dive and circling, which made up most of the flight situations in a real case. The differences between dynamic and static RCS characteristics for the evaluation of the detection ability of fluctuating targets are analyzed. The results show that it is hard for static data to reflect true radar characteristics when a target is moving; using static data to describe target characteristics may lead to false conclusions. The method in this paper can enhance the integrity and confidence level of RCS analysis conclusions.

Key words: non-cooperative target, dynamic characteristics, radar cross section, aerodynamics, radar theory

CLC Number:

DAI Chong, XU Zhenhai, XIAO Shunping. Simulation Method of Dynamic RCS for Non-cooperative Targets[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(5): 1374-1384.

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Simulation Method of Dynamic RCS for Non-cooperative Targets

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