Analysis of the Wichita Mountains Seismological Observatory Ambient Noise Spectral Lines.
Advanced Array Research Special rept. no. 10,
TEXAS INSTRUMENTS INC DALLAS SCIENCE SERVICES DIV
Pagination or Media Count:
A long sample of Wichita Mountains Seismological Observatory short-period ambient noise is analyzed to determine the source and propagation mode of the energy appearing as narrow lines in the noise spectrum. Rayleigh wave propagation from the northeast is inferred from the study of phase spectra. A time-domain technique for predicting extremely narrow-line spectral components so that they may be removed by subtraction is demonstrated for a 13-element array. The technique is highly effective and it appears that its use would be most beneficial at stations having narrow spectral lines in the ambient noise at frequencies in the signal band. Author
- Seismic Detection and Detectors