NDLI: Thinned stepped frequency waveforms to furnish existing radars with imaging capability

Content Provider	IEEE Xplore Digital Library
Author	Freedman, A. Bose, R. Steinberg, B.D.
Copyright Year	1996
Description	Author affiliation: Moore Sch. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA (Freedman, A.; Bose, R.; Steinberg, B.D.)
Abstract	Introducing imaging capability to an existing radar, even if it is a high RF bandwidth radar, may be difficult, due to limitations on the IF bandwidth, limitations on the pulse repetition frequency and electromagnetic compatibility problems. This paper discusses the use of thinned stepped frequency waveforms, which enable the radar to switch between RF frequencies to provide a synthesized wide RF bandwidth, while the thinning may alleviate some of the constraints imposed on the radar. Random and periodic thinning are discussed. However, thinning may cause degradation in image quality, thus an additional technique-sequence CLEAN deconvolution-is suggested. Sequence CLEAN is an iterative deconvolution algorithm, adopted from the field of radio astronomy, which is capable of resolving close targets in a dense environment, where the system response is heavily affected by high sidelobes.
Starting Page	65
Ending Page	69
File Size	435406
Page Count	5
File Format	PDF
ISBN	0780331451
DOI	10.1109/NRC.1996.510658
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-05-13
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar imaging Radio frequency Bandwidth Frequency synthesizers Switches EMP radiation effects Electromagnetic compatibility Degradation Image quality Deconvolution
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
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
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