NDLI: Removing the wall effects using electromagnetic complex coating layer for ultra-wideband through wall imaging

Content Provider	IET Digital Library
Author	Baharian, Mohammad Rajabalipanah, Hamid Fakheri, Mohammad H. Abdolali, Ali
Abstract	The wall-effect compensation is one of the most annoying steps in modern through wall imaging (TWI) problems. Presence of wall not only increases the computational burden due to clutter rejection and complex imaging algorithms, but also blurs the reconstructed image. To mitigate this drawback, different wall-clutter rejection methods have been subject of numerous researches in recent years. However, these wall-clutter rejection methods mainly focus on removing the first strong reflection of wall. In this study, a novel wall-removal method (not only wall-clutter rejection) based on transformation optics (TO) is addressed. This is the first time that TO has been applied to TWI problem. Using this new method, TWI is cast to a free space imaging problem which is computationally more effective and results in more focused images. Real-time imaging is also more available in this case. Without loss of generality, a two-dimensional TWI configuration is assumed to evaluate the provided technique. A single point-like scatterer hidden behind a wall is used to obtain the imaging system point spread function resulted by the proposed technique. Finally, it is shown that the presented method is valid even for lossy walls. Reconstructed images show satisfactory focusing that highlight the capabilities of presented method.
Starting Page	477
Ending Page	482
Page Count	6
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 4, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0514
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2016-10-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Array Signal Processing Beamforming Clutter Clutter Rejection Computer Vision And Image Processing Technique Electromagnetic Complex Coating Layer Free Space Imaging Problem Image Blurring Image Reconstruction Optical Transfer Function Optical, Image And Video Signal Processing Point Spread Function Single Point-like Scatterer Transformation Optics Two-dimensional TWI Configuration Ultrawideband Through Wall Imaging Wall Effect Removal Method Wall-clutter Rejection Method Wall-effect Compensation Walls
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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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6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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