Method of determining a gps position fix and a gps receiver for the same
AssigneeKoninklijke Philips Electronics N.V.
InventorAmites Sarkar
Life of this patent
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Abstract
A method of determining a GPS position fix is disclosed together with a corresponding GPS receiver and server for the same. The method comprising the steps of: (i) providing standard GPS ephemeris corresponding to that transmitted by a GPS satellite; (ii) providing supplemental GPS ephemeris including at least one parameter describing the fluctuation over time of at least one satellite orbit parameter of standard GPS ephemeris; (iii) measuring psuedoranges to GPS satellites; and (iv) determining a GPS position fix from both the standard and supplemental GPS ephemeris provided in steps (i) and (ii) respectively and the psuedoranges measured in step (iii).
Claims13
A method of determining a GPS position fix comprising the steps of:
- (i) providing standard GPS ephemeris corresponding to that transmitted by a GPS satellite;
- (ii) providing supplemental GPS ephemeris including at least one parameter describing the fluctuation over time of at least one satellite orbit parameter of standard GPS ephemeris;
- (iii) measuring psuedoranges to GPS satellites;
- and
- (iv) determining a GPS position fix from both the standard and supplemental GPS ephemeris provided in steps (i) and (ii) respectively and the psuedoranges measured in step (iii).
A GPS receiver configured to determine a GPS position fix from (i) standard GPS ephemeris corresponding to that transmitted by a GPS satellite;
- (ii) supplemental GPS ephemeris including at least one parameter describing the fluctuation over time of at least one satellite orbit parameter of standard GPS ephemeris;
- and (iii) psuedoranges measured from the GPS receiver to GPS satellites.
A server configured to transmit to a remote GPS receiver supplemental GPS ephemeris including at least one parameter describing the fluctuation over time of at least one satellite orbit parameter of standard GPS ephemeris corresponding to that transmitted by a GPS satellite.
Dependencies are inferred from the claim text.