Bulletin of the Seismological Society of America
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Bulletin of the Seismological Society of America; August 1969; v. 59; no. 4; p. 1559-1567
© 1969 Seismological Society of America
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Beam-steering of large randomly-spaced long-period arrays

JACK F. EVERNDEN

OFFICE OF THE SECRETARY OF DEFENSE, WASHINGTON, D.C. 20301

Abstract

Beam-steering of a U.S.-wide randomly-spaced array of long-period LRSM instruments is shown to yield a {surd}n gain in signal to noise ratio for P signals and somewhat less for S signals. Bandpass filtering of these records yields an additional factor of 2 gain in signal to noise ratio.




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J. F. EVERNDEN
Study of seismological evasion: Part I. General discussion of various evasion schemes
Bulletin of the Seismological Society of America, February 1, 1976; 66(1): 245 - 280.
[Abstract] [PDF]


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