UWB Array-Based Sensor for Near-Field Imaging

Author

Yarovoy, Alexander G. ; Savelyev, Timofey G. ; Aubry, Pascal J. ; Lys, Pidio Ekoue ; Ligthart, Leo P.

Author_Institution

Delft Univ. of Technol., Delft

Volume

55

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1288

Lastpage

1295

Abstract

In this paper, the development of an ultra-wideband (UWB) array-based time-domain radar sensor for near-field imaging is described. The radar sensor is designed to be used within a vehicle-mounted multisensor system for humanitarian demining. The main novelty of the radar lies in the system design with a single transmitter and multichannel receiver. Design of the UWB antenna array is also novel. The radar produces 3D images of subsurface by 1D mechanical scanning. The imaging capability of the radar is realized via electronic steering of the receive antenna footprint in a cross-scan direction and synthetic aperture processing in an along-scan direction. Imaging via footprint steering allows for a drastic increase in the scanning speed.

Keywords

antenna arrays; beam steering; ground penetrating radar; landmine detection; radar antennas; radar imaging; ultra wideband antennas; 1D mechanical scanning; 3D subsurface images; UWB antenna array; UWB array-based sensor; cross-scan direction; electronic steering; footprint steering; humanitarian demining; imaging capability; near-field imaging; synthetic aperture processing; time-domain radar sensor; vehicle-mounted multisensor system; Image sensors; Mechanical sensors; Radar antennas; Radar imaging; Sensor arrays; Sensor phenomena and characterization; Sensor systems; Time domain analysis; Ultra wideband radar; Ultra wideband technology; Ground penetrating radar (GPR); landmine detection; near-field imaging; ultra-wideband (UWB) antenna array;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2007.896791

Filename

4230900