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Compound helicopter multi-rotor dynamic radar cross section response analysis

机译：复合直升机多转子动态雷达横截面响应分析

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摘要

With the advancement of helicopter stealth technology and the development of compound helicopters, dynamic electromagnetic scattering of rotor or multi-rotors has become a hot topic of research. In order to deal with the radar stealth problem of compound helicopter target non-coaxial multi-rotor, a multi-rotor dynamic scattering (MDS) calculation method based on dynamic simulation principle (DSP) and multi-axis rotation transformation (MRT) is presented. Single rotor, azimuth angle, elevation angle, rotor disc tilt and attitude angle are all calculated and analyzed in detail. The results show that the electromagnetic scattering of the rotor-like targets exhibits significant periodicity, and the disc tilt or attitude angle affects this periodic and full-machine dynamic scattering. The proposed MDS method is effective and efficient for the dynamic electromagnetic scattering of aircraft operating on individual rotor or multi-axis rotor-type targets. (c) 2020 Elsevier Masson SAS. All rights reserved.
机译：随着直升机隐身技术的进步和复合直升机的发展，转子或多转子的动态电磁散射已成为研究的热门话题。为了处理复合直升机目标非同轴多转子的雷达隐身问题，提出了一种基于动态仿真原理（DSP）和多轴旋转变换（MDT）的多转子动态散射（MDS）计算方法。单个转子，方位角，仰角，转子盘倾斜和姿态角度都得到详细和分析。结果表明，转子状靶的电磁散射表现出显着的周期性，并且圆盘倾斜或姿态角度影响这种周期性和全机动态散射。所提出的MDS方法对于在各个转子或多轴转子型目标上运行的飞机的动态电磁散射有效和有效。 （c）2020 Elsevier Masson SAS。版权所有。

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