发明名称 |
NAVIGATION SYSTEM AND METHOD FOR RESOLVING INTEGER AMBIGUITIES USING DOUBLE DIFFERENCE AMBIGUITY CONSTRAINTS |
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. |
申请公布号 |
EP2663878(B1) |
申请公布日期 |
2017.01.18 |
申请号 |
EP20110813852 |
申请日期 |
2011.12.22 |
申请人 |
Deere & Company |
发明人 |
DAI, Liwen L.;HATCH, Ronald R.;ZHANG, Yujie;WANG, Min |
分类号 |
G01S19/44;G01S19/04;G01S19/07 |
主分类号 |
G01S19/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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