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Effects of the Electromagnetic-Field-Combined Profile of Radar and Decoy on Direction-Finding System of Anti-Radiation Missile |
Zhou Wei-guang①②; Luo Ji-run①; Wang Hua-bin③ |
①Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;②Graduate University of Chinese Academy of Sciences, Beijing 100190, China; ③Second Institute of Air Force, Beijing 100085, China |
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Abstract Under the consideration of field pattern and polarization, a mathematic model related to the filed radiated from the antenna of radar and decoy is presented. Based on the mechanism of two-channel direction-finding systems with four-arm spiral antenna, the simulation algorithms and formulae are introduced and the tracking characteristic of Anti-Radiation Missile (ARM) is analyzed when the system is exposed in the electromagnetic-field-combined profile of radar and decoy. Numerical results show that ARM may be decoyed to a trapped area if the power and initial phase of the radiation filed of the decoy relative to the radar are set to some appropriate values.
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Received: 29 December 2007
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