REMOTE SIGNAL/NOISE TESTS IN POLARIZED NOISE.
Abstract
Rectilinear motion detectors are useful in the study of teleseismic depth phases. A detector has been developed which has controllable sensitivity to the phase and direction of ground motion. Input-output S/N tests were conducted on the detector, using as test data a P phase which had been inserted into signal-generated noise at several S/N ratios. In noise which was polarized in a different direction from the signal, the detectors with high directional sensitivity provided large S/N gains at high input S/N levels. Gain decreased rapidly as input S/N levels fell to 0 db and lower. In noise polarized in the same direction as signal, S/N gain was low. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 16, 1966
- Accession Number
- AD0800364
Entities
People
- James N. Griffin
Organizations
- Teledyne Technologies