neural network-based laser interferometer compensation for seismic signal detection
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2018
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Abstract
We propose a seismic wave detection method in the frequency domain using a heterodyne laser interferometer, which is used in ultraprecision fields as a displacement measurement device. In seismology, it is important to accurately measure seismic waves. To overcome the limited frequency range and low resolution of accelerometers and velocimeters and to enhance the precision of seismic data analysis, we use the heterodyne laser interferometer as a seismic detection apparatus. We apply the data fusion algorithm with the adaptive standard deviation ratio (ς) derived from the neural network to improve the laser interferometer’s measurement precision. Moreover, by using the interferometric characteristics, we analyze the seismic data in the frequency domain. To determine the location of the epicenter from the body wave propagation analysis, we apply the STA/LTA algorithm to the measurement data. The effectiveness of the proposed laser interferometric seismometer is shown through experiments to locate the precise epicenter.
| Reference Key |
lee2018journalneural
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|---|---|
| Authors | ;Kyunghyun Lee;Hyungkwan Kwon;Kwanho You |
| Journal | BMC infectious diseases |
| Year | 2018 |
| DOI |
10.1155/2018/6490861
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| URL | |
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