Considerations on the Relative Accuracy of TDOA Estimation for FSK and OOK Signalling

Abstract

This report outlines accuracy benefits in the time difference of arrival (TDOA) estimation of emitters employing 2-FSK signals over a corresponding OOK signal. We consider TDOA estimation via the conventional approach, using maximization of the magnitude of the complex correlation function. By drawing an analogy with the improvement that is theoretically possible by incorporating phase information into TDOA estimation for an arbitrary signal, it is suggested that for sufficiently high SNR, substantially more accurate estimation of the TDOA is possible with an FSK signal.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2011
Accession Number
ADA544042

Entities

People

  • Gareth Parker
  • John Homer

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Bandwidth
  • Carrier Frequencies
  • Computational Complexity
  • Cross Correlation
  • Engineering
  • Errors
  • Frequency
  • Frequency Shift
  • Intermediate Frequencies
  • Observation
  • Power Spectra
  • Sampling
  • Simulations
  • Spectra
  • White Noise

Fields of Study

  • Engineering

Readers

  • Radar Systems Engineering.
  • Radio communications and signal processing.
  • Systems Analysis and Design