SPECTRUM FILTERING BY MEANS OF NUMERICAL TRANSFORM THEOREM
Abstract
A new type of digital filtering is explained without using the convolution theorem used in electrical engineering. The scheme makes use of the Numerical Transform Theorem which transforms a pair of finite spectra (i.e., amplitude and phase spectra) in the frequency domain into a finite time series. This time series, which may be filtered during transformation, has precisely the same record length as the 'original' time series without introducing meaningless transients. The spectrum filtering technique, in contrast to the convolution filtering technique, has an additional advantage that it does not require a separate digital filter. Some examples are given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1966
- Accession Number
- AD0480401
Entities
People
- Y. T. Huang
Organizations
- Geotech Instruments (United States)