Finding user position location using the Doppler information in satellite CDMA systems

Author

Kim, Soohong ; Chun, Joohwan

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

6

fYear

2000

fDate

2000

Firstpage

2599

Abstract

This paper presents a new method for determining the position of a ground mobile using synthetic aperture radar (SAR) signal processing techniques in the low Earth orbit (LEO) communication satellite. The received signal in the satellite contains the information on the Doppler frequency shift resulting from the relative motion between the satellite and a mobile transmitter over observation interval as measurements. The position of the ground mobile can be obtained by processing the history of Doppler frequencies coherently. Simulation results demonstrating the capability of the proposed position determination method in satellite CDMA communication links are presented

Keywords

Doppler shift; code division multiple access; land mobile radio; multiuser channels; radar signal processing; radio direction-finding; satellite links; synthetic aperture radar; Doppler frequency history processing; Doppler frequency shift; Doppler information; LEO communication satellite; SAR signal processing; ground mobile location; low Earth orbit; mobile transmitter; observation interval; position determination method; received signal; satellite CDMA communication links; satellite CDMA systems; simulation results; synthetic aperture radar; user position location; Artificial satellites; Extraterrestrial measurements; Frequency measurement; History; Low earth orbit satellites; Motion measurement; Multiaccess communication; Radar signal processing; Synthetic aperture radar; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd

Conference_Location

Boston, MA

ISSN

1090-3038

Print_ISBN

0-7803-6507-0

Type

conf

DOI

10.1109/VETECF.2000.886797

Filename

886797