POWER SPECTRUM ESTIMATION OF SIGNAL OF DIFFERENTIAL EXTENSOMETER
Yang Jiang;Xu Chunyang; and Lu Chongwu
Institute of Seismology, CEA, Wuhan 430071
Abstract The method for estimating the signal power spectrum is introduced and the estimation of power spectrum of the signal data of differential extensometer recorded in Wuhan station for three months has been made.It shows that differential structure can improve significantly the antiinterference capability of extensometers and increase the SNR of output signals.
Key words ：
extensometer
power spectrum estimation
anti-interference capability
differential structure
signal-noise ratio
Received: 01 January 1900
Corresponding Authors:
Yang Jiang
Cite this article:
Yang Jiang,Xu Chunyang,and Lu Chongwu. POWER SPECTRUM ESTIMATION OF SIGNAL OF DIFFERENTIAL EXTENSOMETER[J]. , 2007, 27(增刊): 146-148.
Yang Jiang,Xu Chunyang,and Lu Chongwu. POWER SPECTRUM ESTIMATION OF SIGNAL OF DIFFERENTIAL EXTENSOMETER[J]. jgg, 2007, 27(增刊): 146-148.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I增刊/146
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