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http://dx.doi.org/10.5916/jkosme.2017.41.1.83

Design and analysis of direction indicating algorithm for sound reception system based on spectral analysis of whistle signal  

Kwon, Hyuk-Jin (Department of Electronics and Communications Engineering, Korea Maritime and Ocean University)
Kim, Jeong-Chang (Department of Electronics and Communications Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.41, no.1, 2017 , pp. 83-90 More about this Journal
Abstract
In this paper, a sound reception system using a phase difference of whistle signals is proposed and analyzed based on spectral analysis. The proposed system receives whistle signals from four microphones installed in four different directions with 90-degree intervals between them. The proposed algorithm detects the phase of each received signal based on spectral analysis and estimates the direction of the whistle signal by obtaining the phase difference between the received signals from two adjacent microphones. Furthermore, we theoretically analyze the phase difference between two adjacent received signals according to their arrival angles and implement the proposed system using a DSP chip. In addition, the operation of the proposed algorithm are verified using the implemented system in a laboratory environment. Experimental results show that the proposed scheme can well estimate the direction of the whistle signal.
Keywords
Phase difference; Received direction; Ship whistle; Sound reception system; Spectral analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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