Avionic System with Pseudolite-Based Positioning
AssigneeJoby Aero, Inc.
InventorsMichael Alexei Burghardt, Karsten Andreas Mueller
Life of this patent
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Abstract
A method for avionic positioning includes computing a position estimate of the aircraft based at least in part on data corresponding to a signal from each of a plurality of global navigation satellites and data corresponding to a signal from each of at least one pseudolite. A clock of a computing device for computing the position estimate is synchronized to time of the global navigation satellites, and the clock has a timing error less than one microsecond per twenty-four hours.
Claims20
A method for avionic positioning, comprising:
- accessing, with a computing device on an aircraft, data corresponding to a signal from each of a plurality of global navigation satellites;
- accessing, with the computing device, data corresponding to a signal from each of at least one pseudolite, each of the at least one pseudolite synchronized to a time of the global navigation satellites;
- and
- computing, with the computing device, a position estimate of the aircraft based at least in part on the data corresponding to the signal from each of the plurality of global navigation satellites and the data corresponding to the signal from each of the at least one pseudolite, wherein a clock of the computing device is synchronized to the time of the global navigation satellites, and the clock has a timing error less than one microsecond per twenty-four hours.
A system for avionic positioning, comprising:
- an aircraft;
- one or more processors located onboard the aircraft;
- a clock in communication with the one or more processors;
- and
- one or more non-transitory computer-readable media that store instructions that are executable by the one or more processors to perform operations, the operations comprising
- accessing data corresponding to a signal from each of a plurality of global navigation satellites,
- accessing data corresponding to a signal from each of at least one pseudolite when each of the at least one pseudolite is synchronized to a time of the global navigation satellites, and
- computing a position estimate of the aircraft based at least in part on the data corresponding to the signal from each of the plurality of global navigation satellites and the data corresponding to the signal from each of the at least one pseudolite,
- wherein the clock is synchronized to the time of the global navigation satellites, and the clock has a timing error less than one microsecond per twenty-four hours.
A method for avionic positioning, comprising:
- accessing, with a first computing device on an aircraft, data corresponding to a signal from each of a plurality of global navigation satellites;
- accessing, with a second computing device on the aircraft, data corresponding to a signal from each of at least one pseudolites, each of the at least one pseudolites synchronized to a time of the global navigation satellites;
- computing an offset estimate between a clock of the first computing device and a clock of the second computing device, wherein the clock of the second computing device has a timing error less than one microsecond per twenty-four hours;
- and
- computing a position estimate of the aircraft based at least in part on the data corresponding to the signal from each of the plurality of global navigation satellites, the data corresponding to the signal from each of the at least one pseudolites, and the offset estimate.
Dependencies are inferred from the claim text.