Communication Channel Estimation and Waveform Design: Time Delay Estimation on Parallel, Flat Fading Channels

Abstract

A review of performance bounds for time-delay estimation (TDE) is presented, including a discussion of current trends. Then the problem of waveform design for TDE using frequency-hopping (FH) waveforms is analyzed to study the effects of fading and diversity on TDE over parallel channels with flat, Rayleigh fading. The authors present the maximum likelihood estimator (MLE), the Cramer-Rao bound (CRB), and the Ziv-Zakai bound (ZZB) on TDE for several different approaches to modeling the fading channels. Computer simulations of the mean-squared error (MSE) of the MLEs indicate that the ZZB provides a significantly tighter bound than the CRB, and the ZZB exhibits a SNR-threshold region that agrees with the MLE performance.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2010
Accession Number
ADA514713

Entities

People

  • Brian M. Sadler
  • Richard J. Kozick

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Channel Estimation
  • Communication Channels
  • Computational Science
  • Data Science
  • Doppler Effect
  • Estimators
  • Frequency
  • Frequency Agility
  • Frequency Shift
  • Information Science
  • Multiple Input Multiple Output
  • Random Variables
  • Range Finding
  • Sensor Networks
  • Simulations
  • Statistical Algorithms
  • Surveys

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Statistical inference.