Positioning and navigation receiver with a confidence index
First Claim
1. A receiver of positioning signals from at least a satellite constellation, said receiver comprising:
- a port configured to access information on absolute and/or relative values of a position measurement precision in a configuration of said receiver, said configuration being defined by elements chosen from a group comprising processors for processing positioning signals, antennae for receiving said signals, a list of constellations and a list of external links to data for correcting the positioning signals; and
processing circuits configured to process raw positioning, velocity and time data for a satellite;
the processing circuits configured to calculate an information characterizing a precision and/or a confidence index of a calculation of a position of said receiver based on receiving conditions, the information on absolute and/or relative values of a position measurement precision in the configuration of said receiver and the result of the processing of the raw positioning, velocity and time data for the satellite;
wherein the information characterizing the precision and/or the confidence index of the calculation of the position of said receiver is calculated further based on information on a hardware configuration of said receiver relating to an antenna and/or a processor for processing positioning signals of said receiver, said information being provided by a database characterizing permanent and variable elements of said hardware configuration.
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Accused Products
Abstract
The positioning receiver according to the invention comprises means for storing configuration information and information on its reception conditions, which is processed in order to calculate a current and/or predicted precision of the positioning calculation. Advantageously, at least some of this information is integrated into a variation model of a Kalman filter integrated into the receiver. The invention notably allows a more rapid convergence on a reference precision in a mono-frequency operating mode and transitions between a mono-frequency and bi-frequency mode to be smoothed. Advantageously, the precision information is delivered graphically or in numerical form to the user.
14 Citations
16 Claims
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1. A receiver of positioning signals from at least a satellite constellation, said receiver comprising:
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a port configured to access information on absolute and/or relative values of a position measurement precision in a configuration of said receiver, said configuration being defined by elements chosen from a group comprising processors for processing positioning signals, antennae for receiving said signals, a list of constellations and a list of external links to data for correcting the positioning signals; and processing circuits configured to process raw positioning, velocity and time data for a satellite; the processing circuits configured to calculate an information characterizing a precision and/or a confidence index of a calculation of a position of said receiver based on receiving conditions, the information on absolute and/or relative values of a position measurement precision in the configuration of said receiver and the result of the processing of the raw positioning, velocity and time data for the satellite; wherein the information characterizing the precision and/or the confidence index of the calculation of the position of said receiver is calculated further based on information on a hardware configuration of said receiver relating to an antenna and/or a processor for processing positioning signals of said receiver, said information being provided by a database characterizing permanent and variable elements of said hardware configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for receiving positioning signals from at least one satellite constellation, said method comprising:
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accessing information on absolute and/or relative values of a position measurement precision in a configuration of a receiver, said configuration being defined by elements chosen from a group comprising processors for processing positioning signals, antennae for receiving said signals, a list of constellations and a list of external links to data for correcting the positioning signals; processing raw positioning, velocity and time data for a satellite; calculating an information characterizing a precision and/or a confidence index of a calculation of a position of said receiver from receiving conditions, information on the absolute and/or relative values of a precision of position measurements in the configuration of said receiver and a result of the processing of the raw positioning, velocity and time data for satellite; wherein the information characterizing the precision and/or the confidence index of the calculation of the position of said receiver is calculated further based on information on a hardware configuration of said receiver relating to an antenna and/or a processor for processing positioning signals of said receiver, said information being provided by a database characterizing permanent and variable elements of said hardware configuration.
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16. A system for delivering positioning information, comprising a plurality of receivers of positioning signals from at least a satellite constellation, each said receiver comprising:
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a port configured to access information on absolute and/or relative values of a position measurement precision in a configuration of said receiver, said configuration being defined by elements chosen from a group comprising processors for processing positioning signals, antennae for receiving said signals, a list of constellations and a list of external links to data for correcting the positioning signals; and processing circuits configured to process raw positioning, velocity and time data for a satellite; the processing circuits configured to calculate an information characterizing a precision and/or a confidence index of a calculation of a position of said receiver based on receiving conditions, the information on absolute and/or relative values of a position measurement precision in the configuration of said receiver and the result of the processing of the raw positioning, velocity and time data for the satellite; wherein the information characterizing the precision and/or the confidence index of the calculation of the position of said receiver is calculated further based on information on a hardware configuration of said receiver relating to an antenna and/or a processor for processing positioning signals of said receiver, said information being provided by a database characterizing permanent and variable elements of said hardware configuration.
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Specification