Accession Number:
AD0870768
Title:
Horizontal Array Response of Several Wavenumber Analysis Methods.
Descriptive Note:
Seismic data lab. rept.,
Corporate Author:
TELEDYNE INDUSTRIES INC ALEXANDRIA VA EARTH SCIENCES DIV
Personal Author(s):
Report Date:
1969-12-05
Pagination or Media Count:
43.0
Abstract:
In the report the performance of a small array as regards detection and identification of signals in frequency-wavenumber space is evaluated. A two dimensional array is phased to form a one-dimensional array oriented in the direction of simulated signals. Signal discrimination is tested by varying the amplitude, velocity, frequency content and back azimuth of these generated signals. Illustrations of f-k and kx, and ky spectra plots show that, using a small array, neither the standard nor the high resolution frequency-wavenumber analysis can successfully detect small P-waves in ambient P-wave noise. It is concluded that current f-k analysis techniques when used on data from small arrays can easily produce misleading results. Author
Descriptors:
Subject Categories:
- Seismology
- Seismic Detection and Detectors