Counterevasion Studies
Abstract
The report summarizes results to date on a study to determine the effectiveness of two methods which may be used to separate interfering seismic events. These techniques have potential value for counterevasion studies, in that they are expected to distinguish underground nuclear explosions hidden in larger earthquakes, and to identify sequential underground nuclear explosions disguised as earthquakes. The techniques are applied to markedly different combinations of interfering waveforms. The complex cepstrum technique separates signals from the same azimuth, whose waveforms and thus spectra are similar. It does so by treating the entire spectrum of the data. The eigenspectrum technique, by contrast, is used to separate signals from different azimuths, with greatly different spectra, and considers the data over a narrow frequency band.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1973
- Accession Number
- AD0778956
Entities
People
- Stephen S. Lane
Organizations
- Texas Instruments