A study of ambiguity in hyperbolic mobile position location

The paper investigates the conditions in which the MS position estimation is subjected to ambiguous solutions when using the hyperbolic trilateration method in cellular systems. Given the BTSs positions, a mathematical framework based on the measurements of range differences is developed in order to...

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Bibliographic Details
Main Authors: Guimaraes, A.G, Grivet, M.A
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Equipments and installations
Exact sciences and technology
Mobile radio systems
Mobile radiocommunication systems
Radiocommunications
Radionavigation and direction finding
Telecommunications
Telecommunications and information theory
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Summary:The paper investigates the conditions in which the MS position estimation is subjected to ambiguous solutions when using the hyperbolic trilateration method in cellular systems. Given the BTSs positions, a mathematical framework based on the measurements of range differences is developed in order to map the ambiguity region. Evaluation of the size of this region with respect to the hearabilty area is performed, and under this viewpoint a comparison between different geometric arrangements of BTSs is made.
ISSN:0537-9989
DOI:10.1049/cp:20030238