Analysis of Time Delay Estimator Performance

Abstract

Time delay estimation (TDE) is an area of active research with applications in a wide variety of fields. An important concern in the TDE problem is that of predicting the performance of the TDE methods employed. The Cramer-Rao lower bound (CRLB) is commonly used as a performance standard for time delay estimators. Part of the appeal of the CRLB is that, for cases of practical interest, it can be shown that the maximum likelihood (ML) estimate can be made arbitrarily close to the CRLB for sufficiently long observation times. If the observation time is not sufficiently long to ensure that the estimation error is small, estimator performance is dominated by large estimation errors due to anomalous estimates, and actual performance can be much worse than predicted by the CRLB. This report presents a detailed analysis of time delay estimator performance.

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Document Details

Document Type
Technical Report
Publication Date
Jun 19, 1984
Accession Number
ADA163594

Entities

People

  • Kent N. Scarbrough

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Computational Science
  • Correlation Techniques
  • Cross Correlation
  • Data Science
  • Electrical Engineering
  • Estimators
  • Frequency Bands
  • Information Science
  • Mathematical Models
  • Power Spectra
  • Probability Density Functions
  • Random Variables
  • Signal Processing
  • Simulations
  • Statistical Algorithms
  • Time Compression

Fields of Study

  • Engineering

Readers

  • Radar Systems Engineering.
  • Statistical inference.
  • Systems Analysis and Design