Field tests of a cellular telephone positioning system

Author

Klukas, Richard ; Lachapelle, Gerard ; Fattouche, Michel

Author_Institution

Dept. of Geomatics Eng., Calgary Univ., Alta., Canada

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

470

Abstract

This paper presents Cellocate, a cellular telephone positioning system. Due to rules recently adopted by the FCC, cellular licensees must automatically provide the position of cellular 911 callers with an accuracy within 125 m in 67% of all cases. Cellocate estimates position using root MUSIC (MUltiple Signal Identification and Classification) to improve TOA (Time Of Arrival) estimation and hyperbolic trilateration to estimate position. Field tests indicate that Cellocate presently has an accuracy between 180 m and 300 m (66%). It is expected that accuracy will improve when additional cell sites are used in the position estimation process

Keywords

Global Positioning System; cellular radio; parameter estimation; signal resolution; Cellocate; FCC; GPS; accuracy; cellular 911 callers; cellular licensees; cellular telephone positioning system; field tests; hyperbolic trilateration; multiple signal identification and classification; position estimation; root MUSIC; superresolution algorithm; time of arrival estimation; Availability; Delay; FCC; Global Positioning System; Multiple signal classification; Root mean square; Safety; Signal processing; System testing; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600371

Filename

600371