A Study of Two-Dimensional Recursive Digital Filters and a Study of Improved Statistical and Non-Destructive Testing Methods of Failure Prediction in Brittle Materials.

Abstract

Research efforts covered by the subject contract have been directed toward the stability and synthesis problems for two dimensional digital recursive digital filters. Such filters are advantageous when a premium is placed upon computer storage or computation time. Previously defined results on stability analysis have been refined and a revised paper has been submitted to the IEEE Transactions on Circuits and Systems for publication. This research effort will continue to address this complex problem. Approximately circularly symmetric lowpass, highpass, bandpass, bandstop, low frequency boost and high frequency boost filters have been designed. Evaluation of these filters with actual images of various types need to be addressed and has been proposed as a follow on to the effort described in this report.

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Document Details

Document Type
Technical Report
Publication Date
Nov 10, 1978
Accession Number
ADA062315

Entities

Organizations

  • North Carolina Agricultural and Technical State University

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Computers
  • Continuum Mechanics
  • Difference Equations
  • Differential Equations
  • Digital Filters
  • Elastic Properties
  • Equations
  • Filters
  • Finite Element Analysis
  • Frequency
  • Geometry
  • Materials Laboratories
  • Mathematical Filters
  • Mechanical Properties
  • Mechanics
  • North Carolina

Fields of Study

  • Engineering

Readers

  • Economics
  • Phased Array Antenna Design.
  • Technical Research and Report Writing.