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NAVIGATION SYSTEM AND METHOD FOR RESOLVING INTEGER AMBIGUITIES USING DOUBLE DIFFERENCE AMBIGUITY CONSTRAINTS
NAVIGATION SYSTEM AND METHOD FOR RESOLVING INTEGER AMBIGUITIES USING DOUBLE DIFFERENCE AMBIGUITY CONSTRAINTS
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机译:利用双差模糊约束解决整数模糊的导航系统和方法
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摘要
A system and method for providing improved correction information to navigation receivers includes receiving, from a plurality of reference stations at known locations, a plurality of satellite navigation measurements of signals from a plurality of global navigation satellites. A state of the plurality of global navigation satellites is computed based on the received satellite navigation measurements. Baselines, each corresponding to a pair of the reference stations, are identified. For each identified baseline, computing floating and integer values for a double-differenced integer ambiguity. Double-differenced integer ambiguities that satisfy a set of predefined conditions are identified, and the computed state of the plurality of global navigation satellites is adjusted in accordance with an integer value constraint applied to each double-differenced integer ambiguity that satisfies the set of predefined conditions. The correction information is computed from the adjusted computed state of the plurality of global navigation satellites.
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