Title :
A study of ambiguity in hyperbolic mobile position location
Author :
Guimarães, Alberto Gaspar ; Grivet, Marco Antonio
Abstract :
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.
Keywords :
3G mobile communication; cellular radio; parameter estimation; radionavigation; 3GPP; ambiguity region; cellular systems; hearabilty area; hyperbolic mobile position location; hyperbolic trilateration method; mobile station position estimation;
Conference_Titel :
Personal Mobile Communications Conference, 2003. 5th European (Conf. Publ. No. 492)
Print_ISBN :
0-85296-753-5
DOI :
10.1049/cp:20030238
