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http://dx.doi.org/10.7776/ASK.2007.26.4.166

Comparison of Multi-Static Sonar Target Positioning Performance  

Park, Chee-Hyun (한국전기안전공사 전기안전연구원)
Ko, Han-Seok (고려대학교 전기전자전파공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.26, no.4, 2007 , pp. 166-172 More about this Journal
Abstract
In this paper, we address the target positioning performance of Multi-Static sonar with respect to target positioning method and measurement error. Based on the analysis on two candidate solution approaches, namely, Least Square (LS) using range and angular information simultaneously and Maximum Likelihood (ML) using only range information as the existing information fusion methods for possible application to Multi-Static sonar, we propose to employ ML using range and angular information. Assuming that each sensor can receive range and angular information, we conduct representative comparison experiments over the existing and proposed methods under various measurement noise scenarios. We also investigate the target positioning performance according to number of sensors, distance between transmitter and receiver. According to the experimental results, RMSE of the proposed ML with distance and direction information is found to be more superior to ML using distance alone and to LS in case distance between transmitter and receiver is longer and number of receiver is smaller.
Keywords
Multi-Static; Least square; Maximum likelihood; RMSE average; Distance information; Angular information;
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