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Space Station GPS Multipath Analysis and Validation
| 题名： | Space Station GPS Multipath Analysis and Validation |
| 作者： | Hwu, Shian U.; Loh, Y. C. |
| 关键词： | analysis；station；space；multi；ipat；path；tipa；alid；structure；measurement |
| 摘要： | To investigate the multipath effects on the International Space Station (ISS) Global Positioning System (GPS) measurement accuracy, experimental and computational investigations were performed to estimate the carrier phase errors due to multipath. A new modeling approach is used to reduce the required computing time by separating the dynamic structure elements from the static structure elements in the multipath computations. This study confirmed that the multipath is a major error source to the ISS GPS performance and can possibly degrade the attitude determination solution. It is demonstrated that the GPS antenna carrier phase errors due to multipath can be analyzed using the electromagnetic modeling technique such as the Uniform Geometrical Theory of Diffraction (UTD). |
| 报告类型： | 科技报告 |
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