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US 10,502,835 B2Granted
Methods and systems for inherent fast time to first position fix (TTFF) and high sensitivity
OwnerYang Gao, Wentao Zhanginventors
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Abstract
Systems and methods for inherent fast Time To First position Fix (TTFF) and high sensitivity are described. An embodiment of a method may include interpolating a satellite position in response to a navigation message having initial conditions for satellite ephemeris data converted into Keplerian format, wherein signal fixation is maintained in response to receiving the navigation signal at least once per day.
Claims19
A method for inherent fast Time To First position Fix (TTFF) and high sensitivity, comprising:
- obtaining an ephemeris data set at a control segment system;
- converting the ephemeris data set between Cartesian initial conditions and Keplerian initial conditions using a processing component of the control segment system;
- interpolating a satellite position in response to a navigation message having initial conditions for satellite ephemeris data converted into Keplerian format using the processing component of the control segment system;
- wherein signal fixation is maintained in response to receiving the navigation signal at least once per day.
1 more element
A system for inherent fast Time To First position Fix (TTFF) and high sensitivity, comprising:
- a control segment configured to:
- obtain an ephemeris data set;
- convert the ephemeris data set between Cartesian initial conditions and Keplerian initial conditions;
- and
- an endpoint segment configured to interpolate a satellite position in response to a navigation message having initial conditions for satellite ephemeris data converted into Keplerian format;
- wherein signal fixation is maintained in response to receiving the navigation signal at least once per day.
3 more elements
Dependencies are inferred from the claim text.