| IRNSS???????????????????????? |
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| 引用本文： | 冯来平,张洪,贾小林,吴显兵.IRNSS????????????????????????[J].大地测量与地球动力学,2010,30(4):92-97. |
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| 作者姓名： | 冯来平 张洪 贾小林 吴显兵 |
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| 作者单位： | 1. 西安测绘研究所,西安,710054
2. 中国卫星导航工程中心,北京,100081 |
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| 摘 要： | ????IRNSS?????????????????????????????ξ?????????????????IRNSS?????????????λ????????????????????????????????IRNSS???????????Ч???????????????????????????????IRNSS??????????????????????????????????????????????2 000 km????????????????10 m??????λ????????????????????????????????????PDOPС??6????????????????Ч??????????95%???????????
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| 关 键 词： | ??????????????? ?????Ч??????? IGSO???? ?????? ????? |
ANALYSIS OF SERVICE PERFORMANCE OF INDIAN REGIONAL NAVIGATION SATELLITE SYSTEM |
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| Feng Laiping,Zhang Hong,Jia Xiaolin,Wu Xianbing.ANALYSIS OF SERVICE PERFORMANCE OF INDIAN REGIONAL NAVIGATION SATELLITE SYSTEM[J].Journal of Geodesy and Geodynamics,2010,30(4):92-97. |
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| Authors: | Feng Laiping Zhang Hong Jia Xiaolin Wu Xianbing |
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| Institution: | 1)Xi’an Research Institute of Surveying and Mapping,Xi’an 7100542)China Satellite Navigation Project Center,BeiJing 100081 |
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| Abstract: | The structure and characteristics of IRNSS constellation were analyzed.Positioning accuracy is discussed by analysing dilution of accuracy. Based on availability of single point and constellation value, constellation availability is studied when constellation is normal or one of satellites is failure. Results show that the design of IRNSS navigation system is reasonable and it has a good regional coverage. About 10m positioning accuracy can be achieved in India and in the area outside with the extension of 2 000 km. The constellation structure has a certain redundancy as well as good stability.Given a limitation of PDOP 6,at least 95% availability can be achieved when one satellite is failure in these regions. |
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| Keywords: | Indian Regional Navigation Satellite System(IRNSS) User Equivalent Range Error(UERE) IGSO availability constellation value |
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