Study on Method of Eliminating Seismometer Step Calibration Signal
Abstract This paper combines the theoretical step signal with the polynomial fitting method to propose a method to eliminate the step calibration signal in the seismometer record. Comparing the power spectral density (PSD) of the micro-tremor signals at different times, we find that the signal which is eliminated by the proposed method is close to the PSD of the real signal. At the same time, all phases of the step calibration signal eliminated by this method are clearly restored.
Key words :
step calibration
polynomial fitting
power spectral density
very broadband seismometer
Cite this article:
Lü Yongqing,XIANG Ya,ZHOU Yunyao et al. Study on Method of Eliminating Seismometer Step Calibration Signal[J]. jgg, 2020, 40(7): 761-764.
Lü Yongqing,XIANG Ya,ZHOU Yunyao et al. Study on Method of Eliminating Seismometer Step Calibration Signal[J]. jgg, 2020, 40(7): 761-764.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2020/V40/I7/761
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