Horizontal Array Response of Several Wavenumber Analysis Methods.
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 k(x), and k(y) 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 05, 1969
- Accession Number
- AD0870768
Entities
People
- George Galat
- Robert Sax
Organizations
- Teledyne Technologies