一种多通道运动目标重聚焦及运动参数估计方法

Abstract

Abstract:

To overcome the shortcomings of the traditional moving target parameter estimation methods which assume that the target moves with a constant velocity, a new multi-channel moving target parameter estimation algorithm is proposed. By polynomially fitting the instant frequency curve of the azimuth echoes and solving the equations, we can get the estimation of the moving parameters. Furthermore, by reconstructing the azimuth reference function the focused images of the targets can be obtained. The method overcomes the considerable parameter estimation error of an accelerated target obtained by the constant velocity model. Finally the validity of the algorithm is verified by simulations.

Key words: SAR, ground moving target detection, parameter estimation, focusing

CLC Number:

TN957

YU Jing;LIAO Gui-sheng. Multi-channel moving target focusing and parameter estimation algorithm[J].J4, 2009, 36(4): 624-668.

References

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Multi-channel moving target focusing and parameter estimation algorithm

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