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SIGNAL PROCESSING RESULTS FOR CONTINENTAL APERTURE SEISMIC ARRAY

Jack Capon

Abstract

Abstract : The processing of short-period P-wave data from a continental aperture seismic array is considered. The array consists of sites located at the Large Aperture Seismic Array (LASA) in eastern Montana and Long Range seismic Measurement (LRSM) stations located in North America. In particular, the feasibility of recognizing the arrival of the pP phase, making use of P-pP differences in velocity across such a large array, is considered. In addition, the determination of the P-wave source structure of an event is considered by using the array to essentially steer many beams in the vicinity of the epicenter of the event. The capability of the array to perform these two functions is evaluated and discussed in detail.

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Available abstract

Key concepts: Seismic array, Seismology, Geology, Epicenter, Aperture (computer memory), Array processing, Range (aeronautics), Event (particle physics)