DETECTION OF A PATTERN IN UNKNOWN POSITION

Abstract

In this paper, the problem of detecting an optical pattern in unknown position is considered. Two detection procedures are investigated--one which entails a search procedure, and one which does not. The false-alarm and false- dismissal probabilities for these two procedures are evaluated under certain simplifying assumptions in order to compare the two procedures with each other and with the detector which is optimum when the position of the pattern is known. It is shown that there is a tradeoff between error rate and information rate. The procedure requiring a search technique processes the data less rapidly, but at the same time achieves a lower error rate for a given signal-to- noise ratio. This analysis also applies to the problem of detecting a signal with unknown arrival time provided that the assumptions stated herein are satisfied. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1964
Accession Number
AD0610712

Entities

People

  • C. K. Rushforth

Organizations

  • Utah State University

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Contractors
  • Contracts
  • Department Of Defense
  • Detection
  • Detectors
  • False Alarms
  • Information Theory
  • Matched Filters
  • Pattern Recognition
  • Probability
  • Random Variables
  • Recognition
  • Security
  • Theorems
  • Warning Systems

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Radar Systems Engineering.
  • Regression Analysis.