Architecture for ensemble time offset within constellation
AssigneeRaytheon Company
InventorsMarcus A. Teter, Brianne R. Hoppes, Nathaniel Essington
Life of this patent
Estimating the term…
Abstract
Systems, devices, methods, and computer-readable media for ensemble time determination. A method can include receiving, by a transceiver, respective time deltas from a plurality of other space vehicles in a constellation of space vehicles, estimating, by a bank of Kalman filters, respective actual time deltas, resulting in estimated time deltas for each of the plurality of space vehicles, determining, based on the estimated time deltas, an ensemble time offset, and adjusting an internal clock time based on the ensemble time offset resulting in an ensemble clock time.
Claims20
A device comprising:
- a transceiver configured to receive respective time deltas from a plurality of space vehicles in a constellation of space vehicles;
- and
- processing circuitry configured to:
- estimate, by a bank of Kalman filters, respective actual time deltas, resulting in estimated time deltas for each of the plurality of space vehicles;
- determine, based on the estimated time deltas, an ensemble time offset;
- and
- adjust an internal clock time based on the ensemble time offset resulting in an ensemble clock time.
A method performed by a space vehicle, the method comprising:
- receiving, by a transceiver, respective time deltas from a plurality of other space vehicles in a constellation of space vehicles;
- estimating, by a bank of Kalman filters, respective actual time deltas, resulting in estimated time deltas for each of the plurality of space vehicles;
- determining, based on the estimated time deltas, an ensemble time offset;
- and
- adjusting an internal clock time based on the ensemble time offset resulting in an ensemble clock time.
A non-transitory machine-readable medium including instructions that, when executed by a machine, cause the machine to perform operations of ensemble time determination for a space vehicle, the operations comprising:
- receiving, by a transceiver of the space vehicle, respective time deltas from a plurality of other space vehicles in a constellation of space vehicles;
- estimating, by a bank of Kalman filters, respective actual time deltas, resulting in estimated time deltas for each of the plurality of space vehicles;
- determining, based on the estimated time deltas, an ensemble time offset;
- and
- adjusting an internal clock time based on the ensemble time offset resulting in an ensemble clock time.
Dependencies are inferred from the claim text.