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Proceedings Paper

Research on microseismic energy calculation and duration automatically picking
Author(s): Guangdong Song; Binxin Hu; Jinyu Wang; Jian Guo; Tongyu Liu
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Paper Abstract

Accurate measurement of energy is a technical difficulty that various microseismic monitoring systems are facing. In this article, we applied the groundbreaking fiber optics microseismic monitoring system to mine rock burst monitoring for the first time around the world. We suggest to calculate microseismic energy via the duration of vibration. Precise picking of P wave first arrival and end point is essential to microseismic energy calculation. According to the huge energy difference before and after the arrival of the seismic wave, we use the sliding time-window energy ratio method to pick the first arrival and end point, and put forward the quantitative relationship between the sliding time-window width TWL and the sampling frequency as well as the signal dominant frequency for the first time. The results of P wave automatically picking are almost the same as those manually picked. However the end point may need to be corrected if wave distortion occurred.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89241H (15 October 2013); doi: 10.1117/12.2034066
Show Author Affiliations
Guangdong Song, Key Lab. of Optical Fiber Sensoring Technology of Shandong Province (China)
Shandong Academy of Sciences (China)
Binxin Hu, Key Lab. of Optical Fiber Sensoring Technology of Shandong Province (China)
Shandong Academy of Sciences (China)
Jinyu Wang, Key Lab. of Optical Fiber Sensoring Technology of Shandong Province (China)
Shandong Academy of Sciences (China)
Jian Guo, Key Lab. of Optical Fiber Sensoring Technology of Shandong Province (China)
Shandong Academy of Sciences (China)
Tongyu Liu, Key Lab. of Optical Fiber Sensoring Technology of Shandong Province (China)
Shandong Academy of Sciences (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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