Localization of wireless emitters based on the time difference of arrival (TDOA) and wavelet denoising
Localization of wireless emitters based on the time difference of arrival (TDOA) and wavelet denoising
The localization of mobile wireless communication units using time difference of arrival (TDOA) is studied. The wavelet transform is used to increase the accuracy of TDOA estimation. Several denoising techniques based on the wavelet transform are presented. These techniques are applied to different types of test signals and to a simulated baseband GSM signal. The results of the denoising techniques are compared to the ones employing no denoising in terms of the mean square error. The denoising techniques allow a 28 to 81 percent improvement in the TDOA estimation.
The views expressed in this report are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government.
Approved for public release; distribution is unlimited.
TENCAP Office, Department of the Navy
N4175698WR87397
wavelet, denoising, time difference of arrival, GSM
wavelet, denoising, time difference of arrival, GSM
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