Universal Journal of Mechanical Engineering Vol. 5(1), pp. 20 - 23
DOI: 10.13189/ujme.2017.050104
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Epicenter Localization using RDOA based RLS Algorithm

Younghun Pyo , Kyunghyun Lee , Kwanho You ^*
Department of Electrical and Computer Engineering, Sungkyunkwan University, South Korea

ABSTRACT

In this paper, we propose an epicenter measurement using a laser interferometer. The laser interferometer system is an equipment with its extraordinary accurate capability for displacement measurement. The seismic signal is measured in the observation as P-wave and S-wave form. The seismic signal is indicated as in a form of intensity signal which is represented as a trigonometrical function using the heterodyne laser interferomter. The epicenter can be derived by P-S time which can be determined by intensity signal. With a range difference of arrival (RDOA) method, we can estimate the epicenter location from the distance data between the epicenter and the observatory. We suggest a recursive least square (RLS) algorithm to obtain a solution that minimizes estimation error value. Through some simulations, we prove the performance of the proposed method.

KEYWORDS
Heterodyne Laser Interferometer, P-S Time, Range Difference of Arrival, Recursive Least Square

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Younghun Pyo , Kyunghyun Lee , Kwanho You , "Epicenter Localization using RDOA based RLS Algorithm," Universal Journal of Mechanical Engineering, Vol. 5, No. 1, pp. 20 - 23, 2017. DOI: 10.13189/ujme.2017.050104.

(b). APA Format:
Younghun Pyo , Kyunghyun Lee , Kwanho You (2017). Epicenter Localization using RDOA based RLS Algorithm. Universal Journal of Mechanical Engineering, 5(1), 20 - 23. DOI: 10.13189/ujme.2017.050104.