Positioning system for a geostationary satellite
First Claim
1. A positioning system for a geostationary satellite comprising:
- a plurality of outer orbit satellites revolving around the earth in equatorial orbit and polar orbit having higher altitude than that of the geostationary satellite; and
at least one control station performing orbit determination using tracking data for the outer orbit satellites, and then transmitting consequent orbit data to the outer orbit satellites;
the outer orbit satellites transmitting to the geostationary satellite their own navigation data, clock data and correction data generated using the orbit data received from the control station, the geostationary satellite calculating its own position using the navigation data, the clock data and the correction data, and performing position control and attitude control autonomously with onboard sensors and actuators.
1 Assignment
0 Petitions
Accused Products
Abstract
A positioning system for a geostationary satellite according to the present invention comprises a plurality of outer orbit satellites revolving around the earth in equatorial orbit and polar orbit having higher altitude than that of the geostationary satellite; and at least one control station performing orbit determination using tracking data for the outer orbit satellites, and then transmitting consequent orbit data to the outer orbit satellites. The outer orbit satellites transmit to the geostationary satellite their own navigation data, clock data and correction data generated using the orbit data received from the control station. The geostationary satellite calculates its own position using the navigation data, the clock data and the correction data, and performs position control and attitude control autonomously with onboard sensors and actuators.
19 Citations
14 Claims
-
1. A positioning system for a geostationary satellite comprising:
-
a plurality of outer orbit satellites revolving around the earth in equatorial orbit and polar orbit having higher altitude than that of the geostationary satellite; and at least one control station performing orbit determination using tracking data for the outer orbit satellites, and then transmitting consequent orbit data to the outer orbit satellites; the outer orbit satellites transmitting to the geostationary satellite their own navigation data, clock data and correction data generated using the orbit data received from the control station, the geostationary satellite calculating its own position using the navigation data, the clock data and the correction data, and performing position control and attitude control autonomously with onboard sensors and actuators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification