Title :
Difference of arrival estimation using wavelet transforms
Author :
Hippenstiel, R. ; Aktas, U.
Author_Institution :
Dept. of Electr. & Comput. Eng., Naval Postgraduate Sch., Monterey, CA, USA
Abstract :
Accurate localization of a mobile wireless communication unit via a Time Difference of Arrival (TDOA) method is addressed. Wavelet denoising is used to enhance the TDOA estimation. A 79 to 81 percent improvement relative to raw data processing is obtained using a modified approximate maximum likelihood method or its time varying enhancement, respectively
Keywords :
delay estimation; maximum likelihood estimation; mobile radio; radio direction-finding; signal processing; wavelet transforms; TDOA estimation; TDOA method; mobile unit position localization; mobile wireless communication unit; modified approximate maximum likelihood method; time difference of arrival estimation; time varying enhancement; wavelet denoising; wavelet transforms; Base stations; Cellular phones; FCC; Gaussian noise; Global Positioning System; Noise reduction; Telephone sets; Time difference of arrival; Wavelet transforms; Wireless communication;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867824
