An Improved CHA Algorithm for Tracking Low-Angle Targets

Abstract

An improved Correlation Height Analysis (CHA) algorithm is described and further supporting evidence for its effectiveness is provided. The underlying principles are the same as the original CHA algorithm, namely; (a) modeling the behavior of tracking radars in the low-angle region; (b) comparing results of the model with measured data in a correlation process; and (c) selecting the true track from the family of tracks provided by the correlator. The improvements to be discussed are concerned mainly with increasing the efficiency and robustness of the algorithm. The most significant is the procedure for effecting item (c). In addition, a description is given of the software implementation of the algorithm together with the sampled-aperture radar facility used to record data for testing the algorithm. CHA low-angle tracking is demonstrated using experimental data recorded with this facility.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA253173

Entities

People

  • B. J. Rook
  • J. Litva

Organizations

  • Communications Research Centre Canada

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Coefficients
  • Cross Correlation
  • Equations
  • Experimental Data
  • Fire Control Radar
  • Frequency
  • Geometry
  • Grazing Angles
  • Identification
  • Low Angles
  • Radar
  • Reflection
  • Roughness
  • Scattering
  • Surface Roughness
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Sensor Fusion and Tracking Systems.
  • Systems Analysis and Design