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Comparison of 10–18 GHz SAR and MIMO-based short-range imaging radars

Published online by Cambridge University Press:  08 June 2010

Timofey Savelyev ,
Xiaodong Zhuge ,
Bill Yang ,
Pascal Aubry ,
Alexander Yarovoy ,
Leo Ligthart  and
Boris Levitas
Timofey Savelyev*
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Xiaodong Zhuge
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Bill Yang
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Pascal Aubry
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Alexander Yarovoy
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Leo Ligthart
Affiliation:
IRCTR – Technische Universiteit Delft, Mekelweg 4, 2628CD Delft, The Netherlands.
Boris Levitas
Affiliation:
Geozondas Ltd., Shevchenko 16, LT-03111 Vilnius, Lithuania.
*
Corresponding author: T. Savelyev Email: T.G.Savelyev@tudelft.nl
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Abstract

This paper presents an experimental investigation of two approaches to short-range radar imaging at microwaves by means of ultra-wideband (UWB) technology. The first approach represents a classical synthetic aperture radar (SAR) that employs a transmit–receive antenna pair on mechanical scanner. The second one makes use of a multiple input multiple output (MIMO) antenna array that scans electronically in the horizontal plane and mechanically, installed on the scanner, in the vertical plane. The mechanical scanning in only one direction reduces significantly the measurement time. Two respective prototypes have been built and compared. Both systems comprise the same 10–18 GHz antennas and multi-channel video impulse electronics while the same data processing and imaging method based on Kirchhoff migration is applied to acquired data for digital beamforming. The study has been done for an application of concealed weapon detection.

Keywords

MigrationMultiple input multiple outputRadar imagingSynthetic aperture radarUltra-wideband array
Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 2 , Special Issue 3-4: European Microwave Week 2009 , August 2010 , pp. 369 - 377
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2010

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References

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