Time difference of arrival (TDOA) estimation using wavelet based denoising
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Authors
Aktas, Unal.
Subjects
Advisors
Lamm, David V.
Boudreau, Michael W.
Date of Issue
1999-03
Date
March, 1999
Publisher
Monterey, California: Naval Postgraduate School
Language
en_US
Abstract
The localization of mobile wireless communication units is studied. The most important method of localization is the time difference of arrival (TDOA) method. The wavelet transform is used to increase the accuracy of TDOA estimation. Several denoising techniques based on the wavelet transform are presented in this thesis. These techniques are applied to different types of test signals as well as the GSM signal. The results of the denoising techniques are compared to the ones obtained using no denoising. The denoising techniques allow a 28 to 81 percent improvement in the TDOA estimation.
Type
Thesis
Description
Series/Report No
Department
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
xii, 106 p.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.