聚束模式SAR连续缺失数据的高分辨成像方法

doi:10.11999/JEIT150575

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Abstract

The existing approaches with missing data for SAR by Gapped-data Amplitude and Phase EStimation (GAPES) ignore the range migration and phase error, which lead to the decrease of the imaging quality. An imaging method of gapped-data for spotlight mode SAR based on GAPES is presented. It can correct the range migration using two-dimensional interpolation, realize autofucus from sparse data by sparse project approximation subspace tracking algorithm, and ensure the resolution of the image. The simulations and real data processing results show the validity of the proposed approach.

Key words： Gapped-data Amplitude and Phase EStimation (GAPES) Range interpolation Azimuth interpolation Range migration correction Projection Approximation Subspace Tracking (PAST)

Received: 15 May 2015 Published: 14 January 2016

PACS:

TN957.52

Fund:

The National Natural Science Foundation of China (61301210, 61301212), Aeronautical Science Foundation of China (20132007001, 20142052020, 20142052021), Innovation Project of Jiangsu Province (SJLX_0131)

Corresponding Authors: DUAN Huajun E-mail: dhj5816@sina.com

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	DUAN Huajun
	ZHU Daiyin
	MAO Xinhua
	WU Di

Cite this article:

DUAN Huajun,ZHU Daiyin,MAO Xinhua等. High-resolution Imaging for Spotlight Mode SAR from Gapped-data[J]. JEIT, 2016, 38(3): 607-612.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT150575 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I3/607

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