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http://dx.doi.org/10.3744/SNAK.2011.48.2.121

Localization of Underwater Noise Sources Using TDOA (Time Difference of Arrival) Method  

Ahn, Byoung-Kwon (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
Go, Yeong-Ju (Dept. of Aerospace Engineering, Chungnam National University)
Rhee, Wook (Dept. of Aerospace Engineering, Chungnam National University)
Choi, Jong-Soo (Dept. of Aerospace Engineering, Chungnam National University)
Lee, Chang-Sup (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.2, 2011 , pp. 121-127 More about this Journal
Abstract
As considerable interests in noise emission from a ship have been increased, the need for localization of noise sources of the marine propeller generating cavitation and singing noise is looming large. In many practical cases, cavitation and singing noise occur on a particular position of the certain blade of the propeller. It is so important to know the position of noise source correctly in order to eliminate or suppress unwanted noise. In this study, we develop "noise source localization technology" using TDOA method. Experimental measurements carried out at the circulating water channel and towing tank show that noise source can be clearly identified and localized using TDOA method.
Keywords
Marine propeller; Cavitation; Singing; Underwater noise; Time Difference Of Arrival(TDOA); Localization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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