Method and apparatus for estimating position utilizing GPS satellite signal
First Claim
1. A method of determining position using a global position satellite (GPS) signal, comprising:
- receiving at a receiver a first GPS signal from a first GPS satellite at a first position of the first GPS satellite;
receiving at the receiver a second GPS signal from the first GPS satellite at a second position of the first GPS satellite; and
determining a position of the receiver using the first and second GPS signals,determining the position of the receiver comprising measuring pseudo ranges from the first and second GPS signals, and estimating the position of the receiver using differences of a plurality of pairs of immediately consecutive psuedo ranges.
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Abstract
The invention is directed to an apparatus and method for determining or estimating position using GPS signals. The system includes a receiver such as a GPS receiver for receiving GPS signals and a processor for determining position from the received GPS signals. The receiver receives a first GPS signal from a first GPS satellite at a first position of the first GPS satellite. A second GPS signal is received by the receiver from the first GPS satellite at a second position of the first GPS satellite. Position of the receiver is determined using the first and second GPS signals. Time differences between the two signals can be determined and used in calculating position.
21 Citations
41 Claims
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1. A method of determining position using a global position satellite (GPS) signal, comprising:
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receiving at a receiver a first GPS signal from a first GPS satellite at a first position of the first GPS satellite; receiving at the receiver a second GPS signal from the first GPS satellite at a second position of the first GPS satellite; and determining a position of the receiver using the first and second GPS signals, determining the position of the receiver comprising measuring pseudo ranges from the first and second GPS signals, and estimating the position of the receiver using differences of a plurality of pairs of immediately consecutive psuedo ranges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for determining position using a global position satellite (GPS) signal, comprising:
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a receiver for receiving a first GPS signal from a first GPS satellite at a first position of the first GPS satellite and receiving a second GPS signal from the first GPS satellite at a second position of the first GPS satellite; and a processor for determining a position of the receiver using the first and second GPS signals, wherein when the processor determines the position of the receiver using the first and second GPS signals from the first GPS satellite, the processor measures pseudo ranges from the first and second GPS signals and estimates the position of the receiver using differences of a plurality of pairs of immediately consecutive psuedo ranges. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An apparatus for determining position using a global position satellite (GPS) signal, comprising:
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a receiver for receiving a first GPS signal from a first GPS satellite at a first position of the first GPS satellite and receiving a second GPS signal from the first GPS satellite at a second position of the first GPS satellite; and a position calculation unit for determining a position of the receiver using the first and second GPS signals, wherein when the position calculation unit determines the position of the receiver using the first and second GPS signals from the first GPS satellite, the position calculation unit measures pseudo ranges from the first and second GPS signals and estimates the position of the receiver using differences of a plurality of pairs of immediately consecutive psuedo ranges. - View Dependent Claims (38, 39, 40, 41)
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Specification