SAR Image Enhancement Based on Phase-Extension Inverse Filtering

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概要

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• In this paper we present, a new post enhancement method for single look complex (SLC) SAR imagery, which is based on phase-extension inverse filtering. To obtain a high-quality SAR image, the proposed method improves the mainlobe resolution as well as efficiently suppresses the sidelobes with low computational complexity. The proposed method extends the effective signal band up to the maximum-bandwidth allowed by a SAR system. The band-extension is achieved by adjusting the magnitude level of matched filtered SAR spectrum. Because the proposed method preserves the phase components of the spectrum unlike other super-resolution techniques and deconvolution techniques, it enhances a SAR image without causing any displacement. To verify the efficacy of the proposed method we apply it to a simulated SAR image and a real ERS-1 SAR image. The result images show that the proposed method improves the mainlobe resolution with low sidelobe levels.

• 社団法人電子情報通信学会の論文
• 2003-05-01

著者

• Song Woo-jin

  Microwave Application Researchcenter Division Of Electronics And Computer Engineering Pohaug Univers

• DO Dae-Won

  Microwave Application ResearchCenter, Division of Electronics and Computer Engineering,Pohaug Univer

• Do Dae-won

  Microwave Application Researchcenter Division Of Electronics And Computer Engineering Pohaug Univers

関連論文

• SAR Image Enhancement Based on Phase-Extension Inverse Filtering

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