Positioning Method and Device
First Claim
Patent Images
1. Method of positioning a radionavigation signals receiver, characterised in that it comprises:
- a prediction step to predict reception characteristics of signals emitted by radionavigation signal sources for a plurality of land positions, as a function of the positions of said sources, electromagnetic wave propagation models and topographic knowledge about the environment of each said land position;
a receiving step in which said receiver receives radionavigation signals;
a measuring step in which reception characteristics of signals received by said receiver are measured, anda processing step to process real measured characteristics and predicted characteristics to provide information related to positioning of said receiver.
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Abstract
The method of positioning a radionavigation signal receiver comprises:
- a prediction step to predict reception characteristics of signals emitted by radionavigation signal sources for a plurality of land positions and time values, as a function of the positions of said sources, electromagnetic waves propagation models and topographic knowledge about the environment of each said position;
- a receiving step in which said receiver receives radionavigation signals;
- a measuring step in which reception characteristics of signals received by said receiver are measured, and
- a processing step to process the real measured characteristics and predicted characteristics to provide information related to positioning of said receiver.
45 Citations
19 Claims
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1. Method of positioning a radionavigation signals receiver, characterised in that it comprises:
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a prediction step to predict reception characteristics of signals emitted by radionavigation signal sources for a plurality of land positions, as a function of the positions of said sources, electromagnetic wave propagation models and topographic knowledge about the environment of each said land position; a receiving step in which said receiver receives radionavigation signals; a measuring step in which reception characteristics of signals received by said receiver are measured, and a processing step to process real measured characteristics and predicted characteristics to provide information related to positioning of said receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. Device for positioning a radionavigation signals receiver, characterised in that it comprises:
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computer readable program code for predicting reception characteristics of signals emitted by radionavigation signal sources for a plurality of land positions, as a function of the positions of said sources, electromagnetic wave propagation models and topographic knowledge about the environment of each said position; information storage medium for storing said predicted characteristics in a database; a signal receiving device for receiving the radionavigation signals by said receiver; a signal measuring device for measuring the reception characteristics of signals received by said receiver, and a processor including computer program code for processing real measured characteristics and predicted characteristics to provide information about the position of said receiver.
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18. Radionavigation receiver, characterised in that it comprises:
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a signal measuring device for measuring the reception characteristics of signals received by said receiver a signal receiving device for receiving the reception characteristics of signals emitted by radionavigation source, predicted for a plurality of land positions, as a function of positions of said sources, electromagnetic wave propagation models and topographic knowledge of the environment of each said land position; a processor including computer program code for processing measured characteristics and predicted characteristics to provide information about the position of said receiver.
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19. Radionavigation assistance server, characterised in that it comprises:
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computer readable program code for predicting reception characteristics of signals emitted by radionavigation signal sources, for a plurality of land positions, as a function of the positions of said sources, electromagnetic propagation model and topographic knowledge of the environment of each said land position; information storage medium for storing of said predicted characteristics in a database; a processor including computer readable program code for providing said predicted reception characteristics for said land positions on request from a user.
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Specification