发明名称 |
METHODS AND SYSTEMS FOR ENHANCED NAVIGATIONAL PERFORMANCE |
摘要 |
<p>Methods and systems for navigation are disclosed. In one embodiment, data from GPS satellites within a field of view of a ground station are retransmitted to LEO satellites, such as Iridium satellites, and cross-linked if necessary before being transmitted to a user. The user is then able to combine the fed-forward data with data received directly from GPS satellites in order to resolve errors due to interference or jamming. Alternately, a method includes receiving at least one carrier signal at a user device, each carrier signal being transmitted by 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.</p> |
申请公布号 |
EP1706756(A2) |
申请公布日期 |
2006.10.04 |
申请号 |
EP20050749774 |
申请日期 |
2005.01.12 |
申请人 |
THE BOEING COMPANY |
发明人 |
WHELAN, DAVID, A.;COHEN, CLARK, E.;GUTT, GREG, M.;FERRELL, BARTON, G. |
分类号 |
G01S1/00;G01S19/02;G01S19/21;G01S19/25;G01S19/46;G01S19/47 |
主分类号 |
G01S1/00 |
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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