GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) POSITIONING USING PRECISE SATELLITE DATA
First Claim
1. Method to estimate parameters derived at least from global navigational satellite system (GNSS) signals useful to determine a position, comprising:
- obtaining at least one GNSS signal observed at a GNSS receiver from each of a plurality of GNSS satellites;
receiving global correction information useful to correct at least the obtained GNSS signals from a first set of GNSS satellites among the plurality of GNSS satellites, wherein the global correction information includes correction information which is independent from the position to be determined;
receiving local correction information useful to correct at least the obtained GNSS signals from a second set of GNSS satellites among the plurality of GNSS satellites, wherein the local correction information includes correction information which is dependent on the position to be determined;
processing the obtained GNSS signals from the first set of GNSS satellites by using the global correction information; and
processing the obtained GNSS signals from the second set of GNSS satellites by using the local correction information;
wherein the first set of GNSS satellites is different from the second set of GNSS satellites.
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Accused Products
Abstract
Method to estimate parameters derived at least from GNSS signals useful to determine a position, including obtaining at least one GNSS signal observed at a GNSS receiver from each of a plurality of GNSS satellites; receiving global correction information useful to correct at least the obtained GNSS signals from a first set of GNSS satellites, wherein the global correction information includes correction information which is independent from the position to be determined; receiving local correction information useful to correct at least the obtained GNSS signals from a second set of GNSS satellites, wherein the local correction information includes correction information which is dependent on the position to be determined; processing the obtained GNSS signals from the first set of GNSS satellites by using the global correction information; and processing the obtained GNSS signals from the second set of GNSS satellites by using the local correction information.
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Citations
27 Claims
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1. Method to estimate parameters derived at least from global navigational satellite system (GNSS) signals useful to determine a position, comprising:
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obtaining at least one GNSS signal observed at a GNSS receiver from each of a plurality of GNSS satellites; receiving global correction information useful to correct at least the obtained GNSS signals from a first set of GNSS satellites among the plurality of GNSS satellites, wherein the global correction information includes correction information which is independent from the position to be determined; receiving local correction information useful to correct at least the obtained GNSS signals from a second set of GNSS satellites among the plurality of GNSS satellites, wherein the local correction information includes correction information which is dependent on the position to be determined; processing the obtained GNSS signals from the first set of GNSS satellites by using the global correction information; and processing the obtained GNSS signals from the second set of GNSS satellites by using the local correction information; wherein the first set of GNSS satellites is different from the second set of GNSS satellites. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 27)
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13. Apparatus configured to estimate parameters derived at least from global navigational satellite system (GNSS) signals useful to determine a position, comprising:
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an obtaining unit configured for obtaining at least one GNSS signal observed at a GNSS receiver from each of a plurality of GNSS satellites; a first receiving unit configured for receiving global correction information useful to correct at least the obtained GNSS signals from a first set of GNSS satellites among the plurality of GNSS satellites, wherein the global correction information includes correction information which is independent from the position to be determined; a second receiving unit configured for receiving local correction information useful to correct at least the obtained GNSS signals from a second set of GNSS satellites among the plurality of GNSS satellites, wherein the local correction information includes correction information which is dependent on the position to be determined; a first processing unit configured for processing the obtained GNSS signals from the first set of GNSS satellites by using the global correction information; and a second processing unit configured for processing the obtained GNSS signals from the second set of GNSS satellites by using the local correction information; wherein the first set of GNSS satellites is different from the second set of GNSS satellites. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification