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      NON-TAYLOR SERIES BASED POSITIONING METHOD FOR LOCATION BASED SERVICES

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      Journal of Information and Communication Technology

      UUM Press

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          Abstract

          Location Based Services (LBS) has gained increasing popularity in major cities. Due to blocking from man-made structures, the existing Global Positioning System (GPS) could not satisfy LBS applications, especially in street canyon and indoor surroundings. This has lead to the development of Assisted GPS (A-GPS) which can provide better service availability and accuracy gain. In the conventional positioning method, Taylor series expansion is applied to solve non-linear distance equations. This method requires an initial estimation of A-GPS receiver’s position. This paper investigates the positioning method for LBS based on hybrid E-OTD/GNSS. The proposed positioning method is non-Taylor series based. Therefore, it involves less complicated mathematical expansion and substitution. A flexible LBS positioning tool is developed which can generate position information in convenient way. It supports both Taylor series and non-Taylor series based positioning methods. The obtained results showed that the proposed non-Taylor series based positioning method can achieve better positioning accuracy.  

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          Author and article information

          Contributors
          Malaysia
          Malaysia
          Malaysia
          Journal
          Journal of Information and Communication Technology
          UUM Press
          April 07 2008
          : 7
          : 41-55
          Affiliations
          [1 ]Faculty of Engineering & Technology Multimedia University Jalan Ayer Keroh Lama, Bukit Beruang
          Article
          10.32890/jict.7.2008.8079

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