Accession Number:

ADA007044

Title:

Earth Noise at Very Long Period Experiment Stations. Technical Report No. 3. VELA Network Evaluation and Automatic Processing Research

Descriptive Note:

Corporate Author:

TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP

Personal Author(s):

• Prahl, Sidney R.

Report Date:

1974-11-27

Pagination or Media Count:

77.0

Abstract:

The report presents the results of a study of the noise characteristics of eleven Very Long Period Experiment VLPE stations. For the period from January 1972 through March 1973, 1503 one-hour vertical component and 846 one-hour three component noise samples were processed and analyzed for short- and long-term vertical component noise trends, three component spectra, and two-component coherence spectra.

Descriptors:

• *SEISMIC DETECTION
• *UNDERGROUND EXPLOSIONS
• COHERENCE
• NUCLEAR EXPLOSIONS
• POWER SPECTRA
• SEISMIC WAVES
• SEISMOLOGICAL STATIONS
• SEISMOMETERS
• SIGNAL PROCESSING
• SIGNAL TO NOISE RATIO

Subject Categories:

• Seismology
• Seismic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE