RESEARCH IN SEISMOLOGY.
Final rept. 31 Oct 68-30 Nov 69,
TEXAS A AND M UNIV COLLEGE STATION DEPT OF GEOPHYSICS
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A microseism frequency and amplitude tracker has been designed, analyzed, constructed and tested in the laboratory. The microseism tracker demonstrates that it is possible to construct a wide band frequency tracker at microseism frequencies. A relationship between the auto-correlation and cross-correlation of noise in seismic arrays has been obtained and tested using noise data from LASA. The impedance and radiated displacements of a wide band, seismic modelling theorem has been derived starting from seismic reciprocity. Babinets principlefor elastic waves has been derived using the seismic representation theorem. Author