Seismic Discrimination by Harmonic Analysis Techniques.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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A large set of short period earthquake and underground nuclear explosion teleseismic signals recorded at LASA were analyzed using bands of the Discrete Fourier Transform coefficients and a pattern recognition system. The earthquakes, from several regions, ranged in magnitude from 4.1 to 6.1, and included shallow and deep events. The explosions ranged in magnitude from 4.7 to 6.3, and included US, Soviet, and French shots. Best results were 88.9 of the earthquakes and 100 of the explosions correctly identified. Furthermore, when deep and unknown depth earthquakes were excluded, only one earthquake was misidentified. Author
- Seismic Detection and Detectors