发明名称 |
Space based augmentation system with hierarchy for determining geographical corrections source |
摘要 |
Systems, devices and methods are provided for determining the appropriate or desired geographical correction source for SBAS corrections. One aspect provided herein is a method. According to one method embodiment, a Space Based Augmentation System (SBAS) correction message is received from a selected SBAS satellite. It is determined whether at least one criterion is satisfied for using the selected SBAS satellite as a correction source and then processing the correction message received therefrom. A second SBAS satellite is selected from which to receive SBAS correction messages upon determining that at least one criterion is not satisfied for using the selected SBAS satellite as a correction source. One example of SBAS is the Wide Area Augmentation System (WAAS) used in North America Other aspects and embodiments are provided herein.
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申请公布号 |
US6839631(B1) |
申请公布日期 |
2005.01.04 |
申请号 |
US20010029816 |
申请日期 |
2001.12.21 |
申请人 |
GARMIN LTD. |
发明人 |
PEMBLE CLIFF;BARBER CLAYTON E. |
分类号 |
G01S19/11;G01S1/00;G01S5/14;G01S19/07;G01S19/40;G01S19/41;G01S19/46;(IPC1-7):G01C21/26;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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