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Article

Influence of Rotor Dynamic Scattering on Helicopter Radar Cross-Section

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
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Sensors 2020, 20(7), 2097; https://doi.org/10.3390/s20072097
Received: 20 March 2020 / Revised: 4 April 2020 / Accepted: 5 April 2020 / Published: 8 April 2020
(This article belongs to the Section Remote Sensors)
With the continuous improvement and development of armed helicopters, the research on their stealth characteristics has become more and more in depth. In order to obtain the complex effect of stealth characteristics caused by the high-speed rotation of rotor-like components, a dynamic scattering method (DSM) is presented. Rotation speed, azimuth, elevation angle, pitching angle, and rolling angle are studied and discussed in detail. The results show that the electromagnetic scattering characteristics of the main rotor and tail rotor are dynamic and periodic. This period characteristic is related to the rotation speed and attitude angle of the rotor. The radar cross-section (RCS) of the helicopter varies greatly at different observation angles and attitude angles, but the dynamic electromagnetic scattering effect caused by the main rotor and tail rotor cannot be ignored. The presented DSM is effective and efficient for studying the dynamic RCS of the rotor-type parts of a helicopter or the whole machine. View Full-Text
Keywords: helicopter; rotor; radar stealth; radar cross-section; dynamic electromagnetic scattering helicopter; rotor; radar stealth; radar cross-section; dynamic electromagnetic scattering
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MDPI and ACS Style

Zhou, Z.; Huang, J. Influence of Rotor Dynamic Scattering on Helicopter Radar Cross-Section. Sensors 2020, 20, 2097. https://doi.org/10.3390/s20072097

AMA Style

Zhou Z, Huang J. Influence of Rotor Dynamic Scattering on Helicopter Radar Cross-Section. Sensors. 2020; 20(7):2097. https://doi.org/10.3390/s20072097

Chicago/Turabian Style

Zhou, Zeyang, and Jun Huang. 2020. "Influence of Rotor Dynamic Scattering on Helicopter Radar Cross-Section" Sensors 20, no. 7: 2097. https://doi.org/10.3390/s20072097

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