Comparison of Coherent and Incoherent Beamforming Envelope Detectors for NORSAR Regional Seismic Events
Technical rept. no. 6
TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP
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The performance of the conventional coherent beam envelope detector and the incoherent beam envelope detector were studied and compared using short- period Norwegian Seismic Array NORSAR data from regional earthquakes and presumed explosions. The detectors were evaluated in two frequency bands in terms of detection performance, false alarm characteristic, and the resultant operating characteristic. A detector using the envelope of the array beam computed with the Hilbert transform was also examined.
- Seismic Detection and Detectors