Systems and methods for mitigating multipath signals
First Claim
1. A receiver comprising:
- an antenna being configured to receive signals from a plurality of satellites; and
a computing device being configured to;
generate pseudorange measurements based on the received satellites signals;
process the generated pseudorange measurements to reduce their pseudorange residuals based on statistical modeling in order to mitigate multipath errors, andcompute navigation solutions based on the processed pseudorange measurements.
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Accused Products
Abstract
Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a receiver comprising an antenna being configured to receive signals from a plurality of satellites, and a computing device being configured to: generate pseudorange measurements based on the received satellites signals, process the generated pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors, and compute navigation solutions based on the processed pseudorange measurements. A representative method, among others, for mitigating multipath signals in a receiver, comprises: receiving the pseudorange measurements; processing the received pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements.
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Citations
35 Claims
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1. A receiver comprising:
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an antenna being configured to receive signals from a plurality of satellites; and a computing device being configured to; generate pseudorange measurements based on the received satellites signals; process the generated pseudorange measurements to reduce their pseudorange residuals based on statistical modeling in order to mitigate multipath errors, and compute navigation solutions based on the processed pseudorange measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for mitigating multipath signals in a receiver, comprising:
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receiving the pseudorange measurements; processing the received pseudorange measurements to reduce their pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A navigation system comprising:
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a plurality of satellites that transmit signals; and a receiver comprising; an antenna being configured to receive signals from a plurality of satellites, and a computing device being configured to; generate pseudorange measurements based on the received satellites signals, select a statistical model module for the received pseudorange measurements, generate a statistical representation to describe the received pseudorange measurements based on the selected statistical model module, modify the generated statistical representation to reduce the pseudorange residuals of the received pseudorange measurements in order to mitigate multipath errors, and compute navigation solutions based on the modified statistical representation of the received pseudorange measurements. - View Dependent Claims (24, 25)
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26. A method for global positioning system (GPS) navigation, the method comprising:
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tracking at least one GPS signal from a GPS satellite, including receiving the pseudorange measurements and performing a series of early correlation, a series of prompt correlations, and a series of late correlations to define a capture window for maintaining synchronization of the at least one GPS signal with a generated replica signal; reacquiring the at least one GPS signal, including performing a plurality of additional early correlations and a plurality of additional late correlations so as to create an expanded capture window for maintaining the synchronization; processing the received pseudorange measurements, in response to the tracking at least one GPS signal and the reacquiring at least one GPS signal, to reduce their pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements. - View Dependent Claims (27, 28)
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29. A method for global positioning system (GPS) navigation, the method comprising:
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tracking at least one GPS signal from a GPS satellite, including receiving the pseudorange measurements and performing a series of early correlation, a series of prompt correlations, and a series of late correlations to define a capture window for maintaining synchronization of the at least one GPS signal with a generated replica signal; processing the received pseudorange measurements, in response to the tracking at least one GPS signal, to reduce their pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements.
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30. A receiver comprising:
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means for receiving signals from a plurality of satellites; means for generating pseudorange measurements based on the received signals; means for processing the generated pseudorange measurements to reduce pseudorange residuals based at least in part on statistical modeling that mitigates multipath errors; and means for computing navigation solutions based at least in part on the processed pseudorange measurements. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification