NDLI: Passive bistatic SAR imaging — Challenges and limitations

Content Provider	IEEE Xplore Digital Library
Author	Maslikowski, L. Samczynski, P. Baczyk, M. Krysik, P. Kulpa, K.
Copyright Year	1986
Abstract	In this article, a concept of passive bistatic SAR (PB-SAR) imaging using a spaceborne SAR radar transmitter of opportunity is presented. This was proposed for the first time in the beginning of this century by Krieger et al and Griffiths et al. Because passive imaging is completely covert and relatively cheap, as it does not require its own transmitter, and the rapid growth of the computational power of processors has made it possible, the topic has attracted the attention of many research institutes. Recently, several bistatic radar experiments have been carried out using ground stationary receivers and spaceborne illuminators, and the results have shown new capabilities of SAR imaging. In most of these trials, cooperative illuminators were used and placed on satellite platforms developed by the country conducting the experiment, means that the receiver has exact a priori information about the transmitter's parameters (e.g., carrier frequency, signal parameters, chirp duration, pulse repetition frequency [PRF], etc.). To obtain a passive SAR image when the parameters are roughly known, additional techniques for signal analysis and parameter estimation have to be applied, which make the processing more sophisticated. In this article, the challenges and limitations of the PB-SAR imaging are discussed, and the differences in the signal processing chain in mono- and bistatic configurations are indicated. Finally, the recent results of real passive SAR images are presented. The results were obtained by the Warsaw University of Technology (WUT) in 2013, using their passive radar demonstrator mounted on the ground. As the transmitter of opportunity, the TerraSAR-X satellite was used.
Starting Page	23
Ending Page	29
Page Count	7
File Size	1144523
File Format	PDF
ISSN	08858985
Volume Number	29
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synthetic aperture radar Radar imaging Spaceborne radar Image resolution Signal resolution Satellites Bistatic radar
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Electrical and Electronic Engineering Space and Planetary Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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