Optimum Multisensor, Multitarget Time Delay Estimation.

Abstract

This study presents the results of an investigation of the optimum signal processor for passive time delay estimation in a multisensor, multitarget environment. The target-sensor geometry is assumed stationary over the observation time interval. The performance of the optimum processor in terms of Cramer-Rao Lower Bound is presented. The relation between time delay estimation and localization parameter estimation is explored. The derivation of the optimum processor for joint time delay and power spectral estimation is also presented. Methods for improved time delay estimation in the presence of interference are investigated. Finally, a simple analytical expression for the Cramer-Rao Lower Bound for the joint cross-sensor time delay estimate from M sensor arrays is derived. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 20, 1983
Accession Number
ADA127639

Entities

People

  • Lawrence C. Ng
  • Y. Bar-shalom

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Bandwidth
  • Birds
  • Cross Correlation
  • Detection
  • Detectors
  • Electrical Engineering
  • Engineering
  • Estimators
  • Frequency
  • Frequency Bands
  • Frequency Domain
  • Geometry
  • Power Spectra
  • Probability Density Functions
  • Signal Processing
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Radar Systems Engineering.
  • Sensor Fusion and Tracking Systems.