Gnss receiver and calculating method for pseudo-range and position determination thereof
AssigneeSamsung Electronics Co., Ltd.
InventorJaeBum CHO
Life of this patent
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Abstract
Methods and apparatus are provided for calculating a pseudo-range and position in a global navigation satellite system receiver. A first pseudo-range of a satellite is calculated for position determination of the global navigation satellite system receiver. A second pseudo-range of the satellite is calculated for position correction of the global navigation satellite system receiver. A differential operation is performed using the first pseudo-range and the second pseudo-range to eliminate an error. A more precise pseudo-range of the satellite is calculated using the differential pseudo-range.
Claims25
A method for calculating a pseudo-range in a global navigation satellite system receiver, the method comprising the steps of:
- calculating a first pseudo-range of a satellite for position determination of the global navigation satellite system receiver;
- calculating a second pseudo-range of the satellite for position correction of the global navigation satellite system receiver;
- performing a differential operation using the first pseudo-range and the second pseudo-range to eliminate an error;
- and
- calculating a more precise pseudo-range of the satellite using the differential pseudo-range.
A method for calculating a pseudo-range in a global navigation satellite system receiver, the method comprising the steps of:
- determining whether the global navigation satellite system receiver is in an augmented mode;
- correcting a pseudo-range calculated in a previous position determination operation through an augmented channel in the augmented mode;
- and
- calculating a position of the global navigation satellite system receiver using the corrected pseudo-range.
A global navigation satellite system receiver, comprising:
- a mode selection unit configured to select one of a normal mode and an augmented mode;
- a satellite capturing unit configured to be connected to a plurality of satellites through a normal channel for a position determination operation in the normal mode, and to be connected to a satellite, which satisfies a predetermined condition, from among the plurality of satellites, through an augmented channel for position correction in the augmented mode;
- and
- a pseudo-range calculation unit configured to calculate a first pseudo-range of the satellite in the normal mode and a second pseudo-range of the satellite in the augmented mode, and to correct a pseudo-range of the satellite using the first and second pseudo-ranges.
A global navigation satellite system receiver, comprising:
- a first receiver configured to calculate a position based on position information received from an external device;
- and
- a second receiver configured to calculate a position through a normal channel and to correct position determination through an augmented channel, which is not allocated as the normal channel,
- wherein the second receiver corrects a pseudo-range by calculating first pseudo-ranges of satellites for position determination, calculating a second pseudo-range for a satellite, which satisfies a predetermined condition, from among the satellites, for position correction, and performing a differential operation using the first and second pseudo-ranges of the satellite, and
- wherein the second receiver calculates a position of the global navigation satellite system receiver using the corrected pseudo-range.
Dependencies are inferred from the claim text.