A Novel Approach for Clutter Reduction in Through-the-wall UWB Radar Imaging

Abstract

Through-the-wall imaging (TWI) is an emerging area of research and development which is very much useful in urban warfare situations. Ultra-wide band range radar is the best suitable for this application where this range of signals has the capability of penetrating through the materials but still can provide better resolution. The incorporation of signal processing techniques on the raw data will give better representation of the scanned scene. The paper uses impulse radar for TWI, and back projection algorithm is used to retrieve the B-scan signal. A constant gain of factor 100 is used to increase the echo strength. Singular value decomposition is used to reduce the clutter from the B-scan signal and the peak signal to noise ratio is observed to be −3.79 dB.

Keywords:

• Clutter
• Impulse signal
• Synthetic aperture through-the-wall
• Ultra-wide band

Additional information

Notes on contributors

Puli Kishore Kumar

Puli Kishore Kumar received M.Tech in Communication & Radar Systems and B.Tech in Electronics & Communication Engineering from Acharya Nagarjuna University, Guntur. He is a research scholar from National Institute of Technology (NIT), Warangal, and is going to submit his thesis in the area of radar signal processing in the month of October 2012. He has 18 months of teaching experience in Koneru Lakshamaiah University. He has published 5 research articles in various International Conferences & Journals towards his research work.

E-mail: [email protected]

T. Kishore Kumar

T. Kishore Kumar received Ph.D. degree in the area of signal processing. Presently working as Associate Professor in Department of Electronics & Communication Engineering, National Institute of Technology (NIT), Warangal. He is faculty In-charge for Centre for Automation & Instrumentation, NITW.

He has 17 years of experience in teaching. His areas of interest are signal processing and speech processing. At present he is guiding 4 PhD Scholars and 4 M.Tech Students. He has published 7 international Journals and 12 international conference papers during last five years. He attended different international conferences held at Czech Republic, Israel & Singapore. He has been deputed to ESIGELEC University, Rouen, France for taking assignment in Real Time Signal Processing. He has completed one in House R & D Project in Speech Processing. He has delivered expert lectures for RCI (DRDO) & ECIL Engineers.

He is the Member of IEEE and also member of IETE. He is a Reviewer for TMH book on Signals and Systems. He is Member Board of Studies for various institutes.

E-mail: [email protected]