High-resolution Imaging for Spotlight Mode SAR from Gapped-data

DUAN Huajun; ZHU Daiyin; MAO Xinhua; WU Di

doi:10.11999/JEIT150575

Volume 38 Issue 3

Mar. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(3): 607-612

DUAN Huajun, ZHU Daiyin, MAO Xinhua, WU Di. High-resolution Imaging for Spotlight Mode SAR from Gapped-data[J]. Journal of Electronics & Information Technology, 2016, 38(3): 607-612. doi: 10.11999/JEIT150575

Citation:

DUAN Huajun, ZHU Daiyin, MAO Xinhua, WU Di. High-resolution Imaging for Spotlight Mode SAR from Gapped-data[J]. Journal of Electronics & Information Technology, 2016, 38(3): 607-612. doi: 10.11999/JEIT150575

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High-resolution Imaging for Spotlight Mode SAR from Gapped-data

doi: 10.11999/JEIT150575

Funds:

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

Received Date: 2015-05-15
Rev Recd Date: 2015-12-02
Publish Date: 2016-03-19

Abstract

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.

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References(24)

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