Author/Authors :
EL MOURABIT, Ilham Hassan II University of Mohammedia - Faculty Of Science and Technology (FSTM) - Department of electrical engineering, EEA TI laboratory, Morocco , Sahel, Aicha Hassan II University of Mohammedia - Faculty of Sciences and Technologies of Mohammedia - Department of electrical engineering, EEA TI laboratory, Morocco , Badri, Abdelmajid Hassan II University of Mohammedia - Faculty of Sciences and Technologies of Mohammedia - Department of electrical engineering, EEA TI laboratory, Morocco , Baghdad, Abdennaceur Hassan II University of Mohammedia - Faculty of Sciences and Technologies of Mohammedia - Department of electrical engineering, EEA TI laboratory, Morocco
Abstract :
UTDOA is considered the most accurate mobile positioning technique but the channel noise and multipath has a bad effect on time difference estimation which result an inaccurate position of the Mobile Station (MS). In this paper we use a noise cancellation technique before processing the cross-correlation step, that give us a better estimation of time difference of arrival which lead to a most accurate position of MS than conventional UTDOA. Computer simulation is done to show the advantages of this idea compared to simple cross-correlation based UTDOA.
NaturalLanguageKeyword :
Positioning , UTDOA , DSP , adaptive filters , NLMS , Cross Correlation
