Sidelobe Sector Nulling with Minimized Weight Perturbations.

Abstract

A new method is presented to lower the sidelobes of a given array pattern in a specified sidelobe sector while maintaining the integrity of the original pattern. The method consists of minimizing a performance measure defined to be equal to the weighted sum of the power in the sidelobe sector and the squared weight perturbations. By varying the weights in the performance measure, it is possible to shift the relative emphasis placed on the objectives of lowered sidelobes and small pattern distortion. An analytic solution is obtained and for the perturbed weights that minimize the performance measure, and for the perturbed weights when a constant look direction gain constraint is imposed. Curves are plotted showing pattern parameters and examples of perturbed patterns. Keywords: Linear arrays; Synthetic nulling; and Low sidelobes. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1985
Accession Number
ADA157057

Entities

People

  • R. A. Shore

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Antennas
  • Arrays
  • Classification
  • Distortion
  • Identification
  • Identities
  • Intervals
  • Linear Arrays
  • Monitoring
  • Perturbations
  • Security
  • Sidelobes
  • Symmetry
  • Two Dimensional

Readers

  • Calculus or Mathematical Analysis
  • Phased Array Antenna Design.