NDLI: Study on the improvements for the high-resolution frequency modulated continuous wave synthetic aperture radar imaging

Content Provider	IET Digital Library
Author	Jia, Gaowei Chang, Wenge
Abstract	This study develops two aspects of improvement, performing the range-dependent secondary range compression (SRC) and correcting the motion errors within the sweep of the transmitted signal, for the high-resolution frequency modulated continuous wave synthetic aperture radar (FMCW SAR). In cases of more complex imaging scenarios such as higher squint angle and larger range swath, the range dependence of SRC should be considered to avoid severe degradation. Moreover, when the trajectory deviations are severe, the motion error within the sweep causes new noticeable residual range cell migration, which should be considered for the motion compensation of FMCW SAR. Experimental results on the simulated and actual Ku-band SAR data proved that, for full swath and high squint mode FMCW SAR, the proposed approaches are valid and greatly helpful to improve the imaging quality.
Starting Page	1203
Ending Page	1214
Page Count	12
ISSN	17518784
Volume Number	8
e-ISSN	17518792
Issue Number	Issue 9, Dec (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/8/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2013.0383
Journal	IET Radar, Sonar & Navigation
Publisher Date	2014-06-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Complex Imaging Scenarios CW Radar FM Radar FMCW SAR High-resolution Frequency Modulated Continuous Wave Synthetic Aperture Radar Imaging Ku-band SAR Data Motion Compensation Noticeable Residual Range Cell Migration Radar Equipment Radar Resolution Range-dependent Secondary Range Compression SRC Synthetic Aperture Radar System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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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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