NDLI: A <formula><tex>$Ka$</tex></formula>-Band FMCW Radar Front-End With Adaptive Leakage Cancellation

Content Provider	IEEE Xplore Digital Library
Author	Kaihui Lin Yuanxun Ethan Wang Cheng-Keng Pao Yi-Chi Shih
Copyright Year	1963
Abstract	Monostatic frequency modulation continuous wave radars that use one antenna to simultaneously transmit and receive can result in compact and lightweight synthetic aperture radar systems. One of the greatest challenges in designing a continuous-wave monostatic radar is realizing enough isolation between the transmitter and the receiver. A novel real-time digital signal processing scheme is proposed to cancel the transmitter leakage at the receiver front-end and to achieve high isolation. With the digital implementation, the proposed scheme shows a much more precise control of the leakage cancellation when compared to conventional analog implementations. The dc-offset problem in analog mixers that affects the cancellation performance is eliminated. A radar test bed at 26 GHz has been built and tested in several radar modes. The measurement shows a leakage suppression of more than 30 dB over a 1.7-GHz sweeping bandwidth
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	4041
Ending Page	4048
Page Count	8
File Size	867108
File Format	PDF
ISSN	00189480
Volume Number	54
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar antennas Radar imaging Transmitters Testing Frequency modulation Synthetic aperture radar Aperture antennas Receiving antennas Transmitting antennas Digital signal processing unmanned air vehicle (UAV) Adaptive leakage cancellation frequency modulation continuous wave (FMCW) radar lightweight synthetic aperture radar (SAR) real-time digital signal processing (DSP)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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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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