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《Computer Simulation》 2008-08
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Simulation of Radar Echo from Helicopter

HE Zhi-hua(RFSS Radar and Avionics Institute of AVIC,Wuxi Jiangsu 214063,China)  
In view of the demand for researching the radar detection of hovering helicopter and recognition of the helicopter,a simulation method of broad band FM radar echo from helicopter is researched.A model of the broad band FM radar echo from rotation blades is presented.According to the radar in existence,the paper takes the echo of helicopter body as the sum of the echo from several scattering centers on the helicopter body,and simulates the radar environment noise and radar receiver heat noise with additive white Gaussian noise.The simulation radar echo of helicopter is the coherent sum of radar echo from rotation blades,helicopter body and additive white Gaussian noise.The simulation radar echo of helicopter conforms to the result of theoretical analysis.When there are few radar echo data from helicopter recorded in outfield,the simulation result can be used to research the characteristic of radar echo from helicopter,and play an important role in applications of radar detection of hovering helicopter and recognition of the helicopter.
【CateGory Index】: TN957.51
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