Results from the PoSAT GPS experiment

Author

Unwin, Martin ; Sweeting, Martin

Author_Institution

Centre for Satellite Eng. Res., Surrey Univ., Guildford, UK

fYear

1994

fDate

11-15 Apr 1994

Firstpage

598

Lastpage

604

Abstract

The PoSAT-1 microsatellite, launched in September 1993, carries a GPS Navigation Unit as one of its experiments. The Navigation Unit consists of a GPS receiver, antenna and processing hardware. Using the Navigation Unit, the satellite will be able to directly self-track itself to a high degree of accuracy. The supporting software will enable the logging of experimental data, the synchronisation of the satellite and ground station clocks, payload switching and on-board orbit determination through data filtering. This paper briefly describes the experiment and shows some of the preliminary orbital results. A brief analysis of PoSAT´s requirements for the autonomous derivation of Keplerian elements is presented, showing the suitability of the experiment for this purpose

Keywords

aerospace computer control; computerised navigation; radionavigation; satellite relay systems; synchronisation; GPS Navigation Unit; GPS receiver; Keplerian elements; PoSAT GPS experiment; PoSAT-1 microsatellite; antenna; autonomous derivation; data filtering; experimental data logging; ground station clocks; on-board orbit determination; orbital results; payload switching; processing hardware; satellite clock; software; synchronisation; Artificial satellites; Attitude control; Earth; Filtering; Global Positioning System; Hardware; Payloads; Satellite ground stations; Satellite navigation systems; Synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Position Location and Navigation Symposium, 1994., IEEE

Conference_Location

Las Vegas, NV

Print_ISBN

0-7803-1435-2

Type

conf

DOI

10.1109/PLANS.1994.303365

Filename

303365