WVD用于SAR运动目标检测和成象的参数估计
A PARAMETER ESTIMATION FOR DETECTION AND IMAGING OF MOVING TARGETS WITH SAR BY WVD
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摘要: 本文基于联合时间频率二维分布的研究方法,探讨了WVD(Wigner-Ville Distribution)变换用于合成孔径雷达运动目标检测和成象的可行性,给出了能得到运动目标精细成象的参数估计方法,并对多点目标和面目标情况下WVD存在的问题进行了研究。计算机模拟验证了算法的有效性。Abstract: Based on a joint time-frequency two dimensional processing, this paper proposes a method for the detection and imaging of moving targets with SAR by using Wigner-Ville Distribution (WVD). It is a parameter estimation method to generate a high resolution image. The problems of WVD in dealing with multipoint targets and extent targets are also discussed. The computer simulation results illustrate its availability.
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Raney R K. Synthetic aperture radar and moving targets. IEEE Trans. on AES, 1971，AES, 7(3): 499-500.[2]Kay S, Boudrexux-Bartels G F. On the Optimality of the Wigner Distribution for Detection. ICASSP85, March 1985.[3]Barbarossa S. Detection aml imaging o1 moving objects with synthetic aperture radar. IEE Proc: F, 1992, 139(1):89-97. -
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