Crustal and Upper Mantle Velocity and Q of Mainland China
Abstract
The temporal resolution and accuracy of FTAN (frequency-time analysis) as applied to surface wave dispersion analysis are examined for a period range from 10 to 200 seconds. The constant relative bandwidth filter, optimum bandwidth filter and display-equalized filter are carefullye examined with respect to their adequacy of application filter gives a better performance for relatively short-period (les than 50 seconds) dispersion measurement. To measure surace-wave dispersion for a broad period range, a 'matched-filter FTAN' technique is introduced by modifying the 'residual dispersion measurement' technique. A detailed numerical analysis is made on this new technique, the result demonstrates a significant improvement on both the resolution and the accuracy of surface wave dispersion data extraction over a broad period range up to at least 200 seconds.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1982
- Accession Number
- ADA117030
Entities
People
- Ta-liang Teng
Organizations
- University of Southern California