Method and apparatus for generating and distributing satellite tracking information
First Claim
Patent Images
1. A method for providing long term satellite tracking data to a remote receiver comprising:
- receiving satellite signals from at least one satellite at at least one receiving station;
producing long term satellite tracking data from information derived from said satellite signals; and
transmitting at least a portion of the long term satellite tracking data to a remote receiver.
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Accused Products
Abstract
A method and apparatus for providing a satellite tracking data that is valid for an extended period of time into the future. At least a portion of the satellite tracking data is formatted into a format prescribed by a remote receiver. The formatted data is transmitted to the remote receiver via a distribution network. As such, a remote receiver may accurately operate for days without receiving an update of the satellite tracking data.
204 Citations
34 Claims
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1. A method for providing long term satellite tracking data to a remote receiver comprising:
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receiving satellite signals from at least one satellite at at least one receiving station;
producing long term satellite tracking data from information derived from said satellite signals; and
transmitting at least a portion of the long term satellite tracking data to a remote receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
at least one of the following;
code phase measurements, carrier phase measurements, Doppler measurements, and ephemeris data.
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3. The method of claim 1 wherein said long term satellite tracking data comprises:
at least one of;
a plurality of satellite positions with respect to time for a period of time into the future and a plurality of satellite clock offsets with respect to time for a period of time into the future.
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4. The method of claim 1 wherein said long term satellite tracking data comprises:
at least one of;
data representative of satellite positions, velocities or acceleration, data representative of satellite clock offsets, drift, or drift rates.
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5. The method of claim 1 wherein said producing step further comprises:
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generating satellite orbit trajectory data for a past period of time; and
extending the satellite orbit trajectory data into the future.
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6. The method of claim 1 wherein said producing step further comprises:
generating satellite clock offset data for a past period of time; and
extending the satellite clock offset data into the future.
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7. The method of claim 1 wherein the said long term satellite tracking data is valid for greater than four hours.
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8. The method of claim 1 wherein the said at least one satellite is a global positioning system (GPS) satellite.
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9. The method of claim 1 wherein the said at least one satellite is a satellite used in a satellite positioning system.
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10. The method of claim 1 wherein the said remote receiver is a global positioning system (GPS) receiver.
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11. The method of claim 1 wherein the said remote receiver is a satellite positioning system receiver.
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12. The method of claim 1 wherein said transmitting step comprises:
transmitting using a wireless communications link.
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13. The method of claim 12 wherein said transmitting step further comprises:
broadcasting the at least a portion of the long term satellite tracking data to a remote receiver.
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14. The method of claim 1 wherein said transmitting step comprises:
transmitting using a computer network.
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15. The method of claim 14 wherein said transmitting step further comprises:
broadcasting the at least a portion of the long term satellite tracking data to a remote receiver.
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16. The method of claim 1 wherein said transmitting step comprises:
transmitting using the Internet.
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17. The method of claim 16 wherein said transmitting step further comprises:
broadcasting the at least a portion of the long term satellite tracking data to a remote receiver.
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18. A method for providing long term satellite tracking data to a remote global positioning system (GPS) receiver comprising:
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receiving satellite signals from at least one satellite at a plurality of receiving stations;
processing the satellite signals to produce satellite trajectory data and clock data;
producing long term satellite tracking data from the satellite trajectory data and clock data;
generating an orbit model comprising at least a portion of the long term satellite tracking data; and
transmitting the orbit model to a remote GPS receiver. - View Dependent Claims (19, 20)
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21. Apparatus for providing long term satellite tracking data to a remote receiver comprising:
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means for receiving satellite signals from at least one satellite at at least one receiving station;
means for producing long term satellite tracking data from information derived from said satellite signals; and
means for transmitting at least a portion of the long term satellite tracking data to a remote receiver. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
at least one of the following;
code phase measurements, carrier phase measurements, Doppler measurements, and ephemeris data.
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23. The apparatus of claim 21 wherein said long term satellite tracking data comprises:
at least one of;
a plurality of satellite positions with respect to time for a period of time into the future and a plurality of satellite clock offsets with respect to time for a period of time into the future.
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24. The apparatus of claim 21 wherein said long term satellite tracking data comprises:
at least one of;
data representative of satellite positions, velocities or acceleration, data representative of satellite clock offsets, drift, or drift rates.
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25. The apparatus of claim 21 wherein said means for producing further comprises:
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means for generating satellite orbit trajectory data for a past period of time; and
means for extending the satellite orbit trajectory data into the future.
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26. The apparatus of claim 21 wherein said producing means further comprises:
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means for generating satellite clock offset data for a past period of time; and
means for extending the satellite clock offset data into the future.
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27. The apparatus of claim 21 wherein said transmitting means comprises:
a wireless communications link.
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28. The apparatus of claim 21 wherein said transmitting means comprises:
a computer network.
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29. Apparatus for providing long term satellite tracking data to a remote receiver comprising:
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a receiver for receiving satellite signals from at least one satellite at at least one receiving station;
a computer for producing long term satellite tracking data from information derived from said satellite signals; and
a distribution network for distributing at least a portion of the long term satellite tracking data to a remote receiver. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification