Advanced Concepts in Distortion-Invariant Phase-Only Filter Design

Abstract

The classical matched filter is analytically optimal for detecting a target in white additive noise, when SNR is defined in the classical way. However, the complex transmittance values pose problems in their practical realization. The phase-only filter solves this problem but generally adds some noise to the correlation signal. This report studies ways of optimizing the performance of the phase-only filter. This includes the presence of non-white or colored noise in the input scene and detector noise. Formulas are derived and the results tested using actual images of real military armaments....Optical computing correlator phase-only filters, Optical signal processor pattern recognitions.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1992
Accession Number
ADA258691

Entities

People

  • B. V. Kumar

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Algorithms
  • Computational Science
  • Computers
  • Correlators
  • Detection
  • Detectors
  • Distortion
  • Electrical Engineering
  • Filters
  • Matched Filters
  • Optical Correlators
  • Optical Images
  • Pattern Recognition
  • Recognition
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Statistical inference.

Technology Areas

  • AI & ML
  • AI & ML - DoD AI Strategy
  • AI & ML - Machine Learning Algorithms