【摘 要】
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Dear editor,rnThis study presents a method to estimate vector miss distance (VMD) for complex objects based on scattering center (SC) models.In the method, the
【机 构】
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Institute of Applied Electromagnetic, School of Information and Electronics,Beijing Institute of Tec
论文部分内容阅读
Dear editor,rnThis study presents a method to estimate vector miss distance (VMD) for complex objects based on scattering center (SC) models.In the method, the dependence of the SCs on the aspect angle of the light of sight (LOS) is applied in VMD estimation.This method requires only the radar echoes in a short time frame when the flying object approaches to the closet point of approach (CPA).As a result, the application of this method is not limited to a certain motion type of the flying object.And it is suitable for both ballistic and maneuvering motions.In order to validate the feasibility of the proposed method, the simulation results of two extended objects are presented.The results show that this method is of high accuracy in estimating the VMD, the velocity and the flying attitude of the object, even in case with low signal-to-noise ratio (SNR).
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