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Sensors 2017, 17(1), 133; doi:10.3390/s17010133

Evaluation of the Performance of the Distributed Phased-MIMO Sonar

College of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
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Academic Editor: Vittorio M. N. Passaro
Received: 12 September 2016 / Revised: 10 December 2016 / Accepted: 27 December 2016 / Published: 11 January 2017
(This article belongs to the Section Remote Sensors)
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Abstract

A broadband signal model is proposed for a distributed multiple-input multiple-output (MIMO) sonar system consisting of two transmitters and a receiving linear array. Transmitters are widely separated to illuminate the different aspects of an extended target of interest. The beamforming technique is utilized at the reception ends for enhancement of weak target echoes. A MIMO detector is designed with the estimated target position parameters within the general likelihood rate test (GLRT) framework. For the high signal-to-noise ratio case, the detection performance of the MIMO system is better than that of the phased-array system in the numerical simulations and the tank experiments. The robustness of the distributed phased-MIMO sonar system is further demonstrated in localization of a target in at-lake experiments. View Full-Text
Keywords: broadband signal; distributed phased-MIMO; target and localization; sonar; experimental evaluation broadband signal; distributed phased-MIMO; target and localization; sonar; experimental evaluation
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Pan, X.; Jiang, J.; Wang, N. Evaluation of the Performance of the Distributed Phased-MIMO Sonar. Sensors 2017, 17, 133.

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