NDLI: Motion compensation for Compressive Sensing SAR imaging with autofocus

Content Provider	IEEE Xplore Digital Library
Author	Tian Jihua Sun Jinping Han Xiao Zhang Bingchen
Copyright Year	2011
Description	Author affiliation: Nat. Key Lab of MW Imaging Tech., Institute of Electronics, CAS, Beijing, China, 100190 (Zhang Bingchen) \|\| School of Electronic and Information Engineering, Beihang University, Beijing, China, 100191 (Tian Jihua; Sun Jinping; Han Xiao)
Abstract	The high resolution required by various modes of Synthetic Aperture Radar (SAR) results in a huge amount of sampling data, which brings a demand for bigger storage. Recently, a novel SAR concept based on Compressive Sensing (CS) theory asserts that an unknown sparse signal can be recovered exactly with an overwhelming probability even from what appear to be highly sub-Nyquist-rate samples. In this paper, the phase errors caused by radar platform motion are discussed for CS based SAR imaging, and autofocus processing is employed to implement motion compensation. The experiment results show that unfocused SAR images through CS recovery are different from conventional unfocused SAR images for the same motion caused phase error, and usually used Phase Gradient Autofocus (PGA) algorithm is still effective to CS based SAR motion compensation.
Starting Page	1564
Ending Page	1567
File Size	789464
Page Count	4
File Format	PDF
ISBN	9781424487547
e-ISBN	9781424487561
e-ISBN	9781424487554
DOI	10.1109/ICIEA.2011.5975839
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar polarimetry Radar imaging Synthetic aperture radar Motion compensation Compressed sensing Electronics packaging Motion Compensation Compressed Sensing SAR Autofocus
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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