Hybrid Algorithm for Robust, Real-Time Source Localization in Reverberant Environments

Abstract

The location of an acoustical source can be found robustly using the Steered Response Pattern - Phase Transform (SRP-PHAT) algorithm. However SRP-PHAT can be computationally expensive, requiring a search of a large number of candidate locations. The required spacing between these locations is dependent on sampling rate, microphone array geometry, and source location. In this work, a novel method will be presented that calculates a smaller number of test points using an efficient closed-form localization algorithm. This method significantly reduces the number of calculations, while still remaining robust in acoustical environments.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA459061

Entities

People

  • Chris Kyriakakis
  • J. M. Peterson

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Abstracts
  • Algorithms
  • Coefficients
  • Computations
  • Cross Correlation
  • Environment
  • Equations
  • Errors
  • Far Field
  • Frequency Domain
  • Microphones
  • Near Field
  • Reflection
  • Reverberation
  • Time Domain

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation
  • Phased Array Antenna Design.

Technology Areas

  • Space