发明名称 Wide area differential satellite positioning with local area updates
摘要 Wide area corrections are used substantially continuously. Local area corrections are used once or sparsely. For example, an initial position is determined with local area corrections. Wide area corrections are subsequently used. The initial position information is used in the wide area position determination to limit or avoid delay for convergence. Other sparse uses of local area corrections include verifying or updating positions based on substantially continuous use of wide area corrections.
申请公布号 US2007149209(A1) 申请公布日期 2007.06.28
申请号 US20050315657 申请日期 2005.12.22
申请人 NOVARIANT INC. 发明人 LAWRENCE DAVID G.
分类号 H04Q7/20 主分类号 H04Q7/20
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