ZIV-ZAKAI Time Delay Estimation Bound for Ultra-Wideband Signals

Abstract

The Ziv-Zakai bound (ZZB) provides a general mean-square error analytical baseline to evaluate time delay estimation (TDE) techniques for a wide range of time-bandwidth products and signal-to noise ratios, but generally can only be numerically evaluated. The Weiss-Weinstein bound (WWB) further improves characterization of the attainable system performance, for narrowband and wideband signals with small to moderate fractional bandwidth. Similar to the WWB, here we find a simplified closed-form ZZB for TDE with ultra-wideband (UWB) signals. The resulting simplified bound is found over disjoint segments, separated by thresholds that characterize different regions of ambiguity. The closed-form simplified bound can be analytically studied, and approaches both the ZZB and the TDE performance of a maximum likelihood estimator.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA490241

Entities

People

  • Brian M. Sadler
  • Lili Huang
  • Zhengyuan Xu

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Abstracts
  • Ambiguity
  • Autocorrelation
  • Bandwidth
  • Cross Correlation
  • Electrical Engineering
  • Engineering
  • Frequency
  • Frequency Agility
  • Frequency Bands
  • Information Operations
  • Military Research
  • Narrowband
  • Noise
  • Signal Processing
  • Simulations
  • Waveforms

Fields of Study

  • Engineering

Readers

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