Performance Bounds on Atmospheric Acoustic Sensor Arrays Operating in a Turbulent Medium II, Spherical-Wave Analysis

Abstract

The performance bounds of a passive acoustic array operating in a turbulent medium with fluctuations described by a von Karman spectrum are investigated. This treatment considers a single, monochromatic, spherical-wave source and a line-of-sight propagation path. The Cramer-Rao lower bounds of the wave-front angles of arrival are calculated for an unknown parameter set which includes the propagation distance, turbulence parameters, source phase, and signal-to-noise ratio.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2003
Accession Number
ADA414468

Entities

People

  • D. K. Wilson
  • Sandra L. Collier

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Detectors
  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Angle Of Arrival
  • Atmospheric Motion
  • Computational Fluid Dynamics
  • Information Science
  • Line Of Sight
  • Line Of Sight Propagation
  • Scattering
  • Spherical Waves
  • Three Dimensional
  • Turbulence
  • Two Dimensional
  • Wave Propagation
  • Waves

Fields of Study

  • Engineering
  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.