On the accuracy of cellular mobile station location estimation

被引:185
作者
Spirito, MA [1 ]
机构
[1] Politecn Torino, Dipartimento Elettron, Turin, Italy
关键词
E-911; enhanced observed time difference (E-OTD); geometric dilution of precision (GDOP); GSM; intelligent transportation systems (ITS); location-based services; multilateration; observed time difference of arrival-idle period downlink (OTDOA-IPDL); time advance; time difference of arrival (TDOA); time of arrival (TOA); Universal Mobile Telecommunications System (UMTS); uplink TOA; weighted least squares (WLS); wireless location;
D O I
10.1109/25.933304
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper analyzes the accuracy of the multilateration techniques of possible application in mobile communications networks, A general mathematical framework including all the multilateration techniques that process absolute and/or relative distance measurements between the mobile station and multiple base transceiver stations is introduced. Based on this scheme, a general measure of positioning accuracy is first derived and then analyzed in the special cases defined by three techniques of possible implementation in GSM-based systems. A geometrical interpretation of the formulas that define the location accuracy and a comparison between the techniques from the geometric conditioning point of view are also given.
引用
收藏
页码:674 / 685
页数:12
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