System And/Or Method For Reducing Ambiguities In Received SPS Signals
First Claim
Patent Images
1. A method comprising:
- acquiring a first navigation signal at a reference location;
estimating timing of a bit edge of a data signal modulating a second navigation signal received at said reference location based on the first navigation signal; and
performing pre-detection integration to acquire said second navigation signal over an interval of said second navigation signal based, at least in part, on said estimated timing of said bit edge.
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Abstract
The subject matter disclosed herein relates to systems, apparatuses, and/or methods for resolving ambiguities associated with signals received from space vehicles (SVs) in a satellite navigation system. For example, certain methods include receiving a first SV signal from a first satellite positioning system (SPS), and reducing a bit edge ambiguity of a data signal modulating a second SV signal received from a second SPS based, at least in part, on information in the received first SV signal.
18 Citations
26 Claims
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1. A method comprising:
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acquiring a first navigation signal at a reference location; estimating timing of a bit edge of a data signal modulating a second navigation signal received at said reference location based on the first navigation signal; and performing pre-detection integration to acquire said second navigation signal over an interval of said second navigation signal based, at least in part, on said estimated timing of said bit edge. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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a receiver to acquire a first navigation signal at a reference location; and a processor configured to; estimate timing of a bit edge of a data signal modulating a second navigation signal received at said reference location based on the first navigation signal; and to perform pre-detection integration to acquire said second navigation signal over an interval of said second navigation signal based, at least in part, on said estimated timing of said bit edge. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus comprising:
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means for acquiring a first navigation signal at a reference location; means for estimating timing of a bit edge of a data signal modulating a second navigation signal received at said reference location based on the first navigation signal; and means for performing pre-detection integration to acquire said second navigation signal over an interval of said second navigation signal based, at least in part, on said estimated timing of said bit edge. - View Dependent Claims (12, 13, 14, 15)
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16. An article comprising:
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a storage medium, said storage medium comprising machine-readable instructions stored thereon executable by a computing platform to; acquire a first navigation signal at a reference location; estimate timing of a bit edge of a data signal modulating a second navigation signal received at said reference location based on the first navigation signal; and perform pre-detection integration to acquire said second navigation signal over an interval of said second navigation signal based, at least in part, on said estimated timing of said bit edge.
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17. A method comprising:
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determining timing of a bit edge of a data signal modulating a first navigation signal received at a reference location; and determining timing of transitions in an alternating Viterbi encoded signal modulating a second navigation signal received at said reference location based, at least in part, on said timing of said bit edge. - View Dependent Claims (18, 19)
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20. An apparatus comprising:
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a processor configured to; determine timing of a bit edge of a data signal modulating a first navigation signal received at a reference location; and determine timing of transitions in an alternating Viterbi encoded signal modulating a second navigation signal received at said reference location based, at least in part, on said timing of said bit edge. - View Dependent Claims (21, 22)
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23. An apparatus comprising:
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means for determining timing of a bit edge of a data signal modulating a first navigation signal received at a reference location; and means for determining timing of transitions in an alternating Viterbi encoded signal modulating a second navigation signal received at said reference location based, at least in part, on said timing of said bit edge. - View Dependent Claims (24, 25)
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26. An article comprising:
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a storage medium, said storage medium comprising machine-readable instructions stored thereon executable by a computing platform to; determine timing of a bit edge of a data signal modulating a first navigation signal received at a reference location; and determine timing of transitions in an alternating Viterbi encoded signal modulating a second navigation signal received at said reference location based, at least in part, on said timing of said bit edge.
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Specification