Title :
DORIS and its companion DIODE: a dedicated system for orbit determination
Author :
Nouël, F. ; Berthias, J.P. ; Deleuze, M. ; Jayles, C. ; Laudet, P.
Author_Institution :
CNES, Toulouse, France
Abstract :
Summary form only given, as follows. The Centre National d´Etudes Spatiales (CNES) has developed an orbitography system called DORIS. From a network of about 50 ground beacons, the onboard receiver measures the Doppler effects. Such a system is currently performing on the French SPOT2 and SPOT3 imagery satellites. DORIS plays a fundamental role in the TOPEX/POSEIDON orbit computation with an accuracy of a few centimeters. A real time onboard orbit determination device named DIODE will be added to the following receivers. It is based on a Kalman filtering of the dense coverage tracking measurements on a 1750 computer using mainly ADA language. DORIS and DIODE will be on SPOT4, TPFO and ENVISAT satellites
Keywords :
Doppler effect; Kalman filters; aerospace computing; radionavigation; satellite relay systems; tracking systems; 1750 computer; ADA language; CNES; DIODE; DORIS; Doppler effects measurement; ENVISAT satellite; Kalman filtering; SPOT2; SPOT3; TOPEX/POSEIDON orbit computation; TPFO satellite; dedicated system; dense coverage tracking measurements; ground beacons; imagery satellites; onboard orbit determination device; onboard receiver; orbit determination; orbitography system; receivers; Computed tomography; Diodes; Doppler effect; Extraterrestrial measurements; Filtering; Kalman filters; Satellites;
Conference_Titel :
Telesystems Conference, 1994. Conference Proceedings., 1994 IEEE National
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1869-2
DOI :
10.1109/NTC.1994.316680
