ENERGY FLUCTUATIONS IN SEISMIC NOISE
Abstract
Recent observations of seismic noise has indicated a large standing wave or isotropic component composed of the admixture of many propagation modes. Statistical theories such as equipartition of energy have been reasonably successful for deriving the excitation of the propagation modes. Since such models are classically described by waves from a zero-mean Gaussian population, we test this hypothesis by observing if the amplitude envelope is described by a Boltzman or exponential probability distribution. The results are affirmative in that, on comparing a large number of observations of seismic and thermal vacuum tube noise, we cannot distinguish between the two sets of data in fitting exponential distributions. The same holds for both narrow-band and broad-band measurements of the noise.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 07, 1966
- Accession Number
- AD0800039
Entities
People
- Dean B. Rabenstine
- Ralph W. Marine
- Robert L. Sax
Organizations
- Teledyne Technologies