A SUBOPTIMUM APPROACH TO ADAPTIVE ARRAY PROCESSING

Abstract

A system that approximates the performance of the optimum processor (optimum in the sense of maximizing array gain) is presented. Consisting of many two-element subsystems, the system is called a binary array processor (BAP) . The two main advantages of the BAP system are that: (1) It should be easier to implement than the optimum processor because inversion of large matrices is not required; and (2) It should not suffer from errors made in the statistical estimation of cross-spectral densities of the noise field because the system adapts against such errors. These advantages are obtained at the expense of a few db of array gain, but a sample calculation illustrates that the array gain of the BAP system can still be significantly greater than that obtained by conventional time-shift-and-sum beam formation.

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Document Details

Document Type
Technical Report
Publication Date
Jan 17, 1968
Accession Number
AD0666562

Entities

People

  • Ronald R. Kneipfer

Organizations

  • Navy Underwater Sound Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Arrays
  • Connecticut
  • Cross Correlation
  • Detection
  • Equations
  • Hydrophones
  • Information Processing
  • Information Science
  • Inversion
  • Linear Arrays
  • Power Spectra
  • Signal Detection
  • Signal Processing
  • Spectra
  • Statistical Estimation
  • Transfer Functions
  • Underwater Sound

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.
  • Statistical inference.