LARGE-ARRAY SIGNAL AND NOISE ANALYSIS. WIENER NONTIME-STATIONARY PROCESSING

Abstract

In applying the Wiener multichannel time-series processing theory to seismic arrays for teleseismic signal extraction, the transient nature of the signal is not used. This report presents the theoretical development of optimum nontime-stationary signal-extraction filters which take advantage of the additional information of known signal-arrival time. The matrix inversion is made computationally practical by using an extension of the Levinson technique to determine prediction filters several points into the future. A sequence of programs to accomplish the filter design and application is described and illustrated by a sample problem. Significant improvement in mean-square error was not obtained for this sample problem compared to classical Wiener filters. Full evaluation of this technique requires additional data processing and examination with respect to criteria other than mean-square error.

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Document Details

Document Type
Technical Report
Publication Date
Oct 12, 1967
Accession Number
AD0822372

Entities

People

  • Aaron H. Booker
  • G. S. Reeves

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Arrays
  • Classification
  • Commerce
  • Computer Programs
  • Contracts
  • Covariance
  • Data Processing
  • Equations
  • Extraction
  • Filters
  • Government (Foreign)
  • Multichannel
  • Processing Equipment
  • Security
  • Specifications
  • Standards

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Phased Array Antenna Design.