A Decision Support System to Ease Operator Overload in Multibeam Passive Sonar

Rice, Iain and Lowe, David (2018). A Decision Support System to Ease Operator Overload in Multibeam Passive Sonar. IEEE Journal of Oceanic Engineering , pp. 1-11.

Abstract

Creating human-informative signal processing systems for the underwater acoustic environment that do not generate operator cognitive saturation and overload is a major challenge. To alleviate cognitive operator overload, we present a visual analytics methodology in which multiple beam-formed sonar returns are mapped to an optimized 2-D visual representation, which preserves the relevant data structure. This representation alerts the operator as to which beams are likely to contain anomalous information by modeling a latent distribution of information for each beam. Sonar operators therefore focus their attention only on the surprising events. In addition to the principled visualization of high-dimensional uncertain data, the system quantifies anomalous information using a Fisher Information measure. Central to this process is the novel use of both signal and noise observation modeling to characterize the sensor information. A demonstration of detecting exceptionally low signal-to-noise ratio targets embedded in real-world 33-beam passive sonar data is presented.

Publication DOI: https://doi.org/10.1109/JOE.2017.2784199
Divisions: Engineering & Applied Sciences > Mathematics
Engineering & Applied Sciences > Systems analytics research institute (SARI)
Engineering & Applied Sciences > Computer science research group
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: Anomaly,fisher Information,neuroScale,SONAR,visualization
Full Text Link: http://ieeexplo ... cument/8252913/
Related URLs: https://www.sco ... 76d72aea9921c33 (Scopus URL)
Published Date: 2018-01-09
Authors: Rice, Iain
Lowe, David

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