Complex Spatial/Temporal CFAR

Abstract

The conventional cell averaging Constant False Alarm Rate (CFAR) criterion and its variations work well only in strictly spatially stationary environments. In non-homogeneous environments, clutter map (scan-by-scan) processing is deployed. The performance of this method degrades in the presence of slow targets. In this paper, a hybrid procedure for CFAR is proposed, which combines the advantages of both spatial and time averaging. The detection probability is derived and the related plots are given for different values of L, the number of persistence scans. A method is presented to choose the parameter of the hybrid CFAR to have the lowest self-masking effect.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA447389

Entities

People

  • Z. Ebrahimian

Organizations

  • University of Southern California

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • California
  • Detection
  • Detectors
  • Electrical Engineering
  • Engineering
  • False Alarms
  • Filters
  • Gaussian Distributions
  • Gaussian Noise
  • Mathematical Analysis
  • Noise
  • Probability
  • Random Variables
  • Statistics
  • Steady State
  • Warning Systems

Readers

  • Computational Fluid Dynamics (CFD)
  • Radar Systems Engineering.