Array Effective Directivity Index with Gaussianly Perturbed Signal Wavefront

Abstract

In the design of large arrays, the question arises of possible directivity index degradation due to a randomly perturbed signal wavefront. In this memorandum, the array effective directivity index is found for such a situation as a function of the number of array elements, N, and average interelement correlation functions, for signal and noise sound fields. Developments are given for the cases of independent perturbations and Markov- Gaussian correlated perturbations.

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Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1959
Accession Number
ADA072191

Entities

People

  • P. L. Stocklin

Organizations

  • Navy Underwater Sound Laboratory

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Degradation
  • Equations
  • Hydrophones
  • Identities
  • Mathematics
  • Military Research
  • Monitoring
  • Perturbations
  • Security
  • Wavefronts

Fields of Study

  • Physics

Readers

  • Mathematical Modeling and Probability Theory.
  • Phased Array Antenna Design.
  • Wave Propagation and Nonlinear Chaotic Dynamics.