Consumption of Degrees of Freedom in Adaptive Nulling Array Antennas.

Abstract

A gradient search technique is used to maximize consumption of the degrees of freedom for N-channel adaptive nulling phased array antennas. The technique is based on a figure of merit which seeks to maximize the sum of the square roots of the interference covariance matrix eigenvalues. Equivalently, the worst case interference source configuration attempts to completely consume N degrees of freedom of the adaptive nulling antenna. Results are given for several basic regularly spaced arrays. The technique can be applied to a phased array with arbitrary array element positions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 12, 1982
Accession Number
ADA122389

Entities

People

  • Alan J. Fenn

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Antenna Configurations
  • Antenna Radiation Patterns
  • Antennas
  • Arrays
  • Cartesian Coordinates
  • Computer Programs
  • Control Systems
  • Eigenvalues
  • Equations
  • Figure Of Merit
  • Geometry
  • Linear Algebra
  • Linear Arrays
  • Multiple Beam Antennas
  • Phased Arrays
  • Radiation Patterns
  • Square Roots

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Control Systems Engineering.
  • Integrated Circuit Design and Technology.

Technology Areas

  • Space