NDLI: Improved synthetic aperture radar micro-Doppler jamming method based on phase-switched screen

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Improved synthetic aperture radar micro-Doppler jamming method based on phase-switched screen

Content Provider	IET Digital Library
Author	Xu, Letao Feng, Dejun Wang, Xuesong
Abstract	Target micro-motions such as rotation and vibration introduce phase modulation, termed as micro-Doppler (m-D) effect, onto synthetic aperture radar (SAR) signals. This causes ghost targets in the reconstructed SAR images. Inspired by this unique characteristic, a passive-jamming method based on m-D was developed for SAR. The m-D jamming method utilised a rotating reflector to intentionally generate ghost targets as jamming strips on the SAR image so as to protect certain areas. The m-D jamming method based on a single rotating reflector can only generate a long jamming strip along the azimuth direction but located in a finite number of range cells, which restricts the region of protected scene. In this study, an improved m-D jamming method based on phase-switched screen (PSS) is proposed, which combines the advantage induced by the PSS modulation and the usefulness of the m-D jamming. By controlling the modulating frequency and waveform of the PSS, the jamming strip is enlarged along the range direction. Theoretical analyses and simulation results verify the validity of the proposed method.
Starting Page	525
Ending Page	534
Page Count	10
ISSN	17518784
Volume Number	10
e-ISSN	17518792
Issue Number	Issue 3, Mar (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/10/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2015.0266
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-03-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Azimuth Direction Doppler Radar Electromagnetic Compatibility Interference Jamming Optical, Image And Video Signal Processing Passive Jamming Method Phase Switched Screen Phase-switched Screen PSS Modulation Radar Equipment Radar Imaging Reconstructed SAR Image Rotating Reflector SAR Signal Single Rotating Reflector Synthetic Aperture Radar Synthetic Aperture Radar Micro-Doppler Jamming Method System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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