AR (Autoregressive) Modeling of Coherence in Time Delay and Doppler Estimation

Abstract

The estimation of time delay and Doppler difference of a signal arriving at two physically separated sensors is investigated in this thesis. Usually, modified cross power spectrum coupled with Doppler compensation is used to detect a common, passive signal received at two separated sensors. Another successful approach uses the cross coherence to achieve this goal. This thesis modifies these two techniques to model the Doppler difference via an autoregressive (AR) technique. Analytical results are derived and experimentally verified via a computer simulation. Performance at high and low signal to noise ratios (SNRs) is examined. Theses.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA205239

Entities

People

  • Jun Lee

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Amplitude
  • Autocorrelation
  • Complex Numbers
  • Computer Simulations
  • Computers
  • Doppler Effect
  • Electrical Engineering
  • Equations
  • Frequency Shift
  • Performance Tests
  • Power Spectra
  • Simulations
  • Spectra
  • Transfer Functions
  • White Noise

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Radar Systems Engineering.
  • Statistical inference.