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《CRUSTAL DEFORMATION AND EARTHQUAKE》 1994-03
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ESTIMATION OF FUNCTION PARAMETERS AND SPECTRAL ANALYSIS OF TILT OBSERVATION DATA

Su Ruiyuan;Zheng Jinming;Fang Lianpeng and Cui Jinhua(ZhangZhou Station,Seismological Bureau of Fujian Province 363118)  
It is presented to seleet ten functions varying tendentiously in time to estimate the drift of tilt observation and to select the Sine and Cosine functions with various period as the function with different period so that the mathematital model of the function terms contained in tilt observations is founded,and the method for selecting and calculating both of the functions mentioned above is given in this paper.The results computed from the data of tilt observation at Zhangzhou station show that the model is coinsident with the actual conditions,tliat the amplitude with the period of 50 days is correspondins to the earthquakes in Taiwan M,5.0 and in Fujian province ML≥4.0.
【CateGory Index】: P315.63
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