Positioning system
First Claim
1. A positioning system comprising:
- a receiver for receiving signals from a plurality of positioning satellites to output data received from the positioning satellites;
a satellite selector for selecting a plurality of combinations of positioning satellites to be objects of positioning calculation based on the data received from the positioning satellites to output satellite combination data;
a positioning calculator for performing positioning calculations based on the data received from the positioning satellites and the satellite combination data to output positioning results thereof; and
a positioning output determining unit for selecting a positioning result from among the positioning results that is closest to a predicted position to output the selected positioning result as a positioning output.
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Accused Products
Abstract
In order to solve a conventional problem that precision deterioration that cannot be determined by only a DOP, a positioning system is provided which comprises: a receiver for receiving signals from a plurality of positioning satellites to output data received from satellites; a satellite selector for selecting a plurality of combinations of positioning satellites to be objects of positioning calculation based on the data received from satellites to output satellite combination data; a positioning calculator for performing positioning calculation based on the data received from satellites and the satellite combination data to output positioning results thereof; a velocity detector for detecting a velocity of the positioning system to output velocity data; and a positioning output determining unit for selecting a positioning result closest to a predicted position out of the positioning results to output the positioning result as a positioning output.
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Citations
20 Claims
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1. A positioning system comprising:
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a receiver for receiving signals from a plurality of positioning satellites to output data received from the positioning satellites;
a satellite selector for selecting a plurality of combinations of positioning satellites to be objects of positioning calculation based on the data received from the positioning satellites to output satellite combination data;
a positioning calculator for performing positioning calculations based on the data received from the positioning satellites and the satellite combination data to output positioning results thereof; and
a positioning output determining unit for selecting a positioning result from among the positioning results that is closest to a predicted position to output the selected positioning result as a positioning output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. A positioning system comprising:
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a receiver for receiving signals from a plurality of positioning satellites to output data received from positioning satellites;
a satellite selector for selecting a plurality of combinations of the positioning satellites to be objects of positioning calculation based on the data received from the positioning satellites to output satellite combination data;
a positioning calculator for performing positioning calculations based on the data received from the positioning satellites and the satellite combination data to output positioning results thereof;
a velocity detector for detecting a velocity of said positioning system to output velocity data; and
a positioning output determining unit for selecting a positioning result from among the positioning results that is closest to a predicted position to output the selected positioning result as a positioning output, wherein the predicted position is based on the velocity data. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 20)
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Specification