Satellite clock prediction

Details Satellite clock prediction Satellite clock prediction

2007-03-30

2010-11-23

Issing, Gregory C (Department: 3662)

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

Directive

Including a satellite

Reexamination Certificate

active

07839331

ABSTRACT:
Devices and methods are described for determining position information without broadcast ephemeris data for a spanned time period using predictions of future satellite states. These predictions include predictions of satellite clock bias. During the spanned time period, broadcast ephemeris is received such that a broadcast-ephemeris-derived satellite clock bias may be determined. The predictions of satellite clock bias subsequent to the receipt of the broadcast ephemeris may then be corrected based upon the broadcast-ephemeris-derived satellite clock bias.

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Garin et al., A Novel Ephemeris Extension Compaction/Decompaction Method, Proceedings of the ION 63rd Annual Meeting, Apr. 23-25, 2007, pp. 504-510, Cambridge MA.

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