Title :
Time of arrival estimation of narrowband TDMA signals for mobile positioning
Author :
Fischer, S. ; Grubeck, H. ; Kangas, A. ; Koorapaty, H. ; Larsson, E. ; Lundqvist, P.
Author_Institution :
Ericsson Eurolab GmbH, Nuremberg, Germany
Abstract :
Positioning services in cellular systems have received increased attention recently. Solutions of the positioning problem requiring time and angle of arrival measurements have been proposed. The problem of estimating the time of arrival (TOA) of the line of sight (LOS) component of narrowband digital signals in a multipath environment is addressed. A TOA estimation algorithm designed to operate under low SNR is proposed. The algorithm combats multipath propagation by exploiting the fading statistics of the mobile channel. Performance of the algorithm obtained through simulations using COST propagation models for GSM and IS-136 signals is shown and is promising.
Keywords :
cellular radio; digital radio; direction-of-arrival estimation; fading channels; multipath channels; multiuser channels; radio direction-finding; radiowave propagation; time division multiple access; COST propagation models; GSM signals; IS-136 signals; LOS component; TOA estimation algorithm; angle of arrival measurement; fading statistics; line of sight; low SNR; mobile channel; mobile positioning; multipath environment; multipath propagation; narrowband TDMA signals; narrowband digital signals; positioning services; simulations; time of arrival estimation; time of arrival measurement; Algorithm design and analysis; Costs; Fading; Goniometers; Narrowband; Position measurement; Statistics; Time division multiple access; Time measurement; Time of arrival estimation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.733607
