Closed Form Expressions for the Probability of Detection, for an Envelope Detection Approximation Go CFAR Processor.

Abstract

The greatest of constant false alarm rate processor (GO CFAR) is a useful architecture for adaptively setting a radar detection threshold in the presence of clutter edges. The GO CFAR input is often the envelope detected in-phase (I) and quadrature (Q) channels of the baseband signal (x, - sqrt (I2 + Q3). This envelope detection can also be appropriated using x=aI+blQ which requires less complex hardware (a and b are simple multiplying coefficients). The envelope GO CFAR processor and several envelope approximation GO CFAR processors are compare in terms of the probability of detection (PD) performance. Closed-form expressions which describe the FD performance are given and their accuracy evaluated.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA294514

Entities

People

  • Clement Tanaka

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Coefficients
  • Curve Fitting
  • Delay Lines
  • Detection
  • Detectors
  • Distribution Functions
  • Engineering
  • False Alarms
  • Monte Carlo Method
  • Numerical Analysis
  • Probability
  • Radar
  • Random Variables
  • Signal Detection
  • Simulations
  • Warning Systems

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Radar Systems Engineering.