A Study to Evaluate the Efficiency of Beamforming the Lasa Long-Period Array
Seismic data laboratory rept.
TELEDYNE INDUSTRIES INC ALEXANDRIA VA EARTH SCIENCES DIV
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The long-period vertical-component data from 18 teleseismic earthquakes recorded at the Montana LASA were prefiltered and time-shifted to determine the amount of signal loss, rms noise reduction, and signal-to-noise ratio improvement which results from beamforming.