PHILTRE - A SURFACE WAVE PARTICLE MOTION DISCRIMINATION PROCESS.
Abstract
A digital computer process is described which examines the three-component particle-motion pattern of seismic data as a function of frequency and uses this information to discriminate against all motion except surface waves arriving from some pre-assigned direction. Application of the process to long-period data shows that it can substantially improve the signal-to-noise ratios of Love and Rayleigh waves from earthquakes and underground detonations. The PHILTRE program includes a subroutine which provides a usable estimate of the peak amplitude of any surface wave propagating in the aimed direction. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1967
- Accession Number
- AD0826595
Entities
People
- R. S. Simons
Organizations
- Geotech Instruments (United States)