Improvement of the Time Difference of Arrival (TDOA) Estimation of GSM Signals Using Wavelets

Abstract

The problem of localization of wireless emitters (GSM based) using time difference of arrival (TDOA) techniques is studied. The wavelet transform and denoising techniques are used to increase the accuracy of the TDOA estimate. GSM like signals are simulated using the Hewlett-Packard Advanced Designs System (HP-ADS) software. Improvement in the mean squared error (MSE) of the TDOA estimate is demonstrated. It is shown that the improvement depends on signal to noise (SNR) ratio, data length, bandwidth, and on spectral location within the frequency band of interest.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 30, 2000
Accession Number
ADA380368

Entities

People

  • Ralph D. Hippenstiel
  • Timothy Haney
  • Tri T. Ha

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Human Systems
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Angle Of Arrival
  • Bandwidth
  • Communication Systems
  • Computers
  • Engineering
  • Frequency
  • Frequency Agility
  • Frequency Bands
  • Frequency Division Multiple Access
  • Law
  • Mobile Phones
  • Modulation
  • Multiple Access
  • Time Division Multiple Access
  • Transmitters
  • Wavelet Transforms

Fields of Study

  • Engineering

Readers

  • Computer Networking
  • Image Processing and Computer Vision.
  • Radar Systems Engineering.