Extraction of Long-Period Surface Waves

Abstract

Gains from a cascaded Wiener filter, three component adaptive (TCA) filter, and prewhitened matched filter were measured for various orders of application to long-period surface waves buried in seismic noise. It was found that the gain of the cascaded Wiener filter and three component adaptive filter was greater than the sum of their individual gains, and that this was the best order of application, but that following them with the matched filter reduced the overall gain over the range of input signal to noise ratio of interest. These results are due to the non-linear nature of the TCA and to the distortion inherent in its output.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 08, 1977
Accession Number
ADA052828

Entities

People

  • Stephen S. Lane

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Adaptive Filters
  • Air Force
  • Bandpass Filters
  • Bias
  • Contracts
  • Data Sets
  • Detection
  • Distortion
  • Filters
  • Matched Filters
  • Maximum Likelihood Estimation
  • Power Spectra
  • Signal Processing
  • Surface Waves
  • Test And Evaluation
  • Waves

Fields of Study

  • Engineering

Readers

  • Coastal Oceanography
  • Phased Array Antenna Design.