A Study of Two Short-period Discriminants
نویسنده
چکیده
This paper is the result of a large-population study of discrimination between earthquakes and explosions, using only short-period data from a single station. The data was obtained from the Large Aperture Seismic Array and the two discriminants studied were waveform complexity and spectral ratio. Procedures for multivariate discrimination are developed and results are given in terms of earthquake identification percentages using these discriminants singly, and in combination with each other and with magnitude. The results are quite encouraging, complete separation being found for explosions and shallow earthquakes using spectral ratio and magnitude together. Accepted for the Air Force Franklin C. Hudson Chief, Lincoln Laboratory Office
منابع مشابه
Statistics of the Spectral Ratio and Log-likelihood Ratio Seismic Discriminants
The effect of noise variations on two of the short period seismic discriminants, spectral ratio and log-likelihood ratio is studied. The mean square errors of two different estimators of these two discriminants are evaluated and some theoretical and experimental results for two seismic signals in seismic noise are presented. Accepted for the Air Force Joseph R. Waterman, Lt. Col., USAF Chief, L...
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