Conveying orbit information via ambiguous position information

Details Conveying orbit information via ambiguous position information Conveying orbit information via ambiguous position information

2008-01-14

2010-06-15

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C342S357490

Reexamination Certificate

active

07737888

ABSTRACT:
In a method of conveying information regarding an orbit used at a Global Navigation Satellite System (GNSS) base station to a GNSS receiver, a satellite position is determined for a particular time from an orbit of a GNSS satellite. An ambiguity value is extracted from the satellite position. The ambiguity value is extracted based upon a satellite position determination margin of error of a GNSS receiver. The ambiguity value is encoded into an encoded ambiguity value which is assembled into a message. The message also includes a time tag representing the particular time. The message is transmitted from the GNSS base station. The encoded ambiguity value and the time tag convey information regarding the orbit to a GNSS receiver in receipt of the message.

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