An Alternate Approach to Optimum Bearing Estimation.

Abstract

An alternate processing scheme for bearing estimation locates the peaks of the acoustic energy distribution in k-omega space and combines the estimates obtained at each temporal frequency under a least mean-square-error criterion. This processor is shown to be optimum in the sense that the variance of the resultant bearing estimate is equal to the Cramer-Rao lower bound under the same conditions assumed by MacDonald and Schultheiss. The relevance of this processing scheme for bearing estimation of impulsive signal spectra is briefly discussed in the context of recent sonar systems. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 27, 1976
Accession Number
ADA031571

Entities

People

  • Wolfgang K. Fischer

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acquisition
  • Detectors
  • Estimators
  • Frequency
  • Gaussian Processes
  • Integrals
  • Multiple Targets
  • Observation
  • Plane Waves
  • Random Variables
  • Spectra
  • Statistical Algorithms
  • Travel Time
  • Two Dimensional
  • Wavefronts
  • Waves

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Approximation Theory.
  • Statistical inference.

Technology Areas

  • Space
  • Space - Space Objects