Accession Number : AD0705190
Title : RESEARCH IN SEISMOLOGY.
Descriptive Note : Final rept. 31 Oct 68-30 Nov 69,
Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF GEOPHYSICS
Personal Author(s) : Gangi,Anthony F.
Report Date : 16 JAN 1970
Pagination or Media Count : 68
Abstract : 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. Babinet's principlefor elastic waves has been derived using the seismic representation theorem. (Author)
Descriptors : (*SEISMOLOGICAL STATIONS, NOISE), PHASED ARRAYS, MICROSEISMS, BROADBAND, STATISTICAL FUNCTIONS, MATHEMATICAL MODELS
Subject Categories : Seismology
Distribution Statement : APPROVED FOR PUBLIC RELEASE