SATELLITE NAVIGATION RECEIVER AND METHOD FOR SWITCHING BETWEEN REAL-TIME KINEMATIC MODE AND PRECISE POSITIONING MODE
First Claim
1. A method for operating one or more satellite navigation receivers, the method comprising:
- receiving, by a reference receiver, one or more satellite signals;
measuring, by the reference receiver, a carrier phase of the received satellite signals;
receiving, at the reference receiver, a precise signal encoded with precise correction data;
determining, by a precise positioning estimator of a reference receiver, a precise position based on the measured carrier phase of the received satellite signals and the received precise correction data in a precise correction mode;
determining a base offset vector between the precise position and a reference real-time kinematic (RTK) position for the reference receiver; and
transmitting, via an RTK signal, RTK correction data, which comprises a representation of the base offset vector, to a mobile receiver.
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Accused Products
Abstract
A system or method uses an offset vector to provide seamless switching between a real-time kinematic (RTK) mode and a precise positioning mode. A correction wireless device is adapted to receive, at the reference receiver, a precise signal encoded with precise correction data. A precise positioning estimator of the reference receiver is arranged to determine a precise position based on the measured carrier phase of the received satellite signals and the received precise correction data in a precise correction mode. At the reference receiver, an offset module can determine a base offset vector between the precise position and a reference RTK position for the reference receiver. At the reference receiver, a wireless communications device is capable of transmitting, via an RTK signal, RTK correction data.
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Citations
17 Claims
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1. A method for operating one or more satellite navigation receivers, the method comprising:
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receiving, by a reference receiver, one or more satellite signals; measuring, by the reference receiver, a carrier phase of the received satellite signals; receiving, at the reference receiver, a precise signal encoded with precise correction data; determining, by a precise positioning estimator of a reference receiver, a precise position based on the measured carrier phase of the received satellite signals and the received precise correction data in a precise correction mode; determining a base offset vector between the precise position and a reference real-time kinematic (RTK) position for the reference receiver; and transmitting, via an RTK signal, RTK correction data, which comprises a representation of the base offset vector, to a mobile receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for operating one or more satellite navigation receivers, the comprising:
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at a reference receiver, a measurement module for measuring a carrier phase of the received satellite signals; a correction wireless device for receiving, at the reference receiver, a precise signal encoded with precise correction data; a precise positioning estimator of the reference receiver for determining a precise position based on the measured carrier phase of the received satellite signals and the received precise correction data in a precise correction mode; at the reference receiver, an offset module for determining a base offset vector between the precise position and a reference RTK position for the reference receiver; and at the reference receiver, a wireless communications device for transmitting, via an RTK signal, RTK correction data, which comprises a representation of the base offset vector, to a mobile receiver. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification