Focusing and Parameter Estimation of Fluctuating Targets in High Resolution Spaceborne SAR

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Abstract

Complex motion can cause serious defocusing phenomena in high resolution spaceborne SAR cases, which then lead to decreased image resolution. In this study, we built a simulation model to quantitatively analyze the signature and effect on maritime fluctuating targets in high resolution cases. To deal with formed Single-Look Complex (SLC) SAR images containing fluctuating targets, we implement a motion-compensation and fine-focusing method to obtain refocused images and the fluctuation parameters. We demonstrate the effectiveness and correctness of the proposed approach in focusing and estimating the parameters of fluctuating targets by processing the simulation results and archived images acquired by Terra-SAR in hybrid spotlight mode.

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	Wen Xuejiao
	Qiu Xiaolan
	You Hongjian
	Lu Xiaojun

Key words： Spaceborne SAR High resolution Moving target fine focusing Parameter estimation

Received: 2017-01-13; Published: 2017-04-25

Fund:

The National Natural Science Foundation of China (61331017), The Key Standard Technologies of National High Resolution Special (30-Y20A12-9004-15/16, 41-Y20A13-9001-15/16)

Cite this article:

Wen Xuejiao,Qiu Xiaolan,You Hongjian et al. Focusing and Parameter Estimation of Fluctuating Targets in High Resolution Spaceborne SAR[J]. JOURNAL OF RADARS, 2017, 6(2): 213-220.

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[10]	Zhao Hai-yang, Wang Xiao, Wang Wei-hua, Zheng Xin. System Design of a S-band Solid-state Transmitter in Satellite-borne SAR[J]. JOURNAL OF RADARS, 2014, 3(3): 274-281.
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