Title
Sonar system combining an emitter array with a sparse receiver array for air-coupled applications Sonar system combining an emitter array with a sparse receiver array for air-coupled applications
Author
Faculty/Department
Faculty of Applied Economics
Publication type
article
Publication
New York ,
Subject
Physics
Engineering sciences. Technology
Source (journal)
IEEE sensors journal / Institute of Electrical and Electronics Engineers [New York, N.Y.] - New York
Volume/pages
15(2015) :6 , p. 3446-3452
ISSN
1530-437X
ISI
000354190200002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In this paper, we describe the application of a emitter array based on Simultaneous Transmit - Synthetic Aperture Beamforming (ST-STAB) to improve the Signal-to- Noise Ratio (SNR) in an existing, 3D, air-coupled sonar system. The ST-STAB approach allows for the simultaneous emission of orthogonal codes by an array of emitters, which are decoded in the receiver stage, eliminating the need for multiple measurement cycles. By adding more emitters to the sensor system, the overall emitted acoustic energy is increased, while the ST-STAB approach ensures an efficient use of measurement time. We elaborate on the mathematical model of the sensor and signal processing system, provide the associated Point Spread Functions and show experimental validation the constructed prototype array.
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