A Generalized Approach to Direction Finding

Abstract

The problem of direction finding with a sensor array in a multiple source environment is addressed. In this research a generalized formulation to the problem is developed. In the generalized formulation a matrix pencil is constructed. The rank reducing values are shown to contain the information needed to estimate the angles of arrival. It is also shown that several different nonsearch procedures are special cases of the generalized approach. The attractiveness of these techniques is their computational efficiency. The techniques differ depending upon the manner in which either the measured data is processed, or the angular information is extracted from the resulting equations. The pencil theorem establishes the relationship between the rank reducing values and the functional form generated by the operators applied to the measurements. This generalized approach allows for the inclusion of prefiltering before applying an operator to the measurements. Based on the generalized approach a new nonsearch direction of arrival estimation procedure is presented which is shown to be valid for the case of coherent sources.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1988
Accession Number
ADA203768

Entities

People

  • Donald Weiner
  • Hamza Ouibrahim

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Angle Of Arrival
  • Data Science
  • Direction Finding
  • Equations
  • Factor Analysis
  • Filters
  • Filtration
  • Frequency
  • High Resolution
  • Information Science
  • Linear Arrays
  • Measurement
  • Signal Processing
  • Statistical Algorithms
  • Statistical Analysis
  • Two Dimensional

Readers

  • Approximation Theory.
  • Statistical inference.
  • Systems Analysis and Design