发明名称 |
LEO-BASED POSITIONING SYSTEM FOR INDOOR AND STAND-ALONE NAVIGATION |
摘要 |
A method for estimating a precise position of a user device from signals from a low earth orbit (LEO) satellite includes receiving at least one carrier signal at a user device, each carrier signal being transmitted a distinct LEO satellite. The user device processes the carrier signals to obtain a first carrier phase information. The user device recalls an inertial position fix derived at an inertial reference unit. The user device derives a position of the user device based on the inertial position fix and the first carrier phase information.
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申请公布号 |
US2010220007(A1) |
申请公布日期 |
2010.09.02 |
申请号 |
US20090367027 |
申请日期 |
2009.02.06 |
申请人 |
WHELAN DAVID A;COHEN CLARK E;GUTT GREG M;FERRELL BARTON G |
发明人 |
WHELAN DAVID A.;COHEN CLARK E.;GUTT GREG M.;FERRELL BARTON G. |
分类号 |
G01S19/11;G01S19/44;G01S5/02;G01S5/14;H04B7/185 |
主分类号 |
G01S19/11 |
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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