发明名称 |
METHODS AND SYSTEMS TO INCREASE ACCURACY IN THE NAVIGATION OF SINGLE FREQUENCY RECEIVERS |
摘要 |
<p>In a method of mitigating errors in satellite navigation measurements at a satellite navigation receiver, respective single-frequency signals are received from respective satellites in a plurality of satellites in a satellite navigation system. Pseudorange and carrier-phase measurements corresponding to respective received single-frequency signals are calculated. These calculations include filtering the pseudorange and carrier-phase measurements in a Kalman filter having a state vector comprising a plurality of states, including a position state, a receiver clock state, and a plurality of bias states. Each bias state corresponds to a respective satellite in the plurality of satellites. The filtering includes updating the state vector. An estimated position of the satellite navigation receiver is updated in accordance with an update to the state vector.</p> |
申请公布号 |
EP2376936(A1) |
申请公布日期 |
2011.10.19 |
申请号 |
EP20090799218 |
申请日期 |
2009.12.09 |
申请人 |
NAVCOM TECHNOLOGY, INC. |
发明人 |
DAI, LIWEN, L.;WANG, CHAOCHAO;ESLINGER, DANIEL, J.;GENTA, JOHN, PERRY |
分类号 |
G01S19/43;G01S19/41 |
主分类号 |
G01S19/43 |
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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