Single-Channel Prediction for Earth Tidal Tilt Data.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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The earth tidal tilt data consists of two parts one is the theoretical part caused by the tidal potential of the moon and the sun another one is the seismic noise part that originates from meteorological, hydrodynamic, and cultural sources. The theoretical part is completely determinable by astronomical data. The seismic noise may be considered as a stationary stochastic process over short periods of time when there have been no great changes in the source mechanisms. Based on the above assumption, prediction and interpolation of the earth tidal tilt data can be achieved by solving the Wiener-Hopf equation. A computer program PREDICT is derived by using Levinsons recursive method to solve the discrete-time Wiener-Hopf equation. Test results on real data are satisfactory. Besides the earth tidal tilt data, the PREDICT program can also be applied to any stationary stochastic discrete-time signal.
- Seismic Detection and Detectors