| GPS/GALILEO组合系统可见卫星与GDOP的区域和时序分析 |
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| 引用本文： | 丁朋辉,程鹏飞,蔡艳辉.GPS/GALILEO组合系统可见卫星与GDOP的区域和时序分析[J].测绘科学,2008,33(6):5-8. |
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| 作者姓名： | 丁朋辉 程鹏飞 蔡艳辉 |
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| 作者单位： | 中国测绘科学研究院,北京,100039;中国测绘科学研究院,北京,100039;中国测绘科学研究院,北京,100039 |
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| 摘 要： | 卫星星座方案的选择对导航定位精度具有很大影响。本文根据GALILEO系统的设计轨道参数模拟得到的GALILEO系统的卫星位置,分别计算了GPS系统、GALILEO系统和GPS/GALILEO组合系统在不同卫星截止高度角的情况下,全国范围内可见卫星和GDOP值的分布情况,并选择了北京、武汉和乌鲁木齐三个城市,连续观测24小时,分析了各城市的可见卫星和GDOP值随时间的变化规律。
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| 关 键 词： | GALILEO GPS GPS/GALILEO组合系统 GDOP值 区域性 时序性 |
The regional and sequential analysis of visible satellite and GDOP value for GPS/GALILEO combination system |
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| DING Peng-hui,CHENG Peng-fei,CAI Yan-hui.The regional and sequential analysis of visible satellite and GDOP value for GPS/GALILEO combination system[J].Science of Surveying and Mapping,2008,33(6):5-8. |
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| Authors: | DING Peng-hui CHENG Peng-fei CAI Yan-hui |
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| Abstract: | The choice of satellite constellation would greatly affect the accuracy of navigation and positioning.The distribution of visible satellites and GDOP values for GPS,GALILEO and the GPS /GALILEO combination system was respectively calculated in different elevation masks,using the GALILEO orbit parameters for simulating the satellite position.Besides,continuous observations in 24 hours were conducted in Beijing,Wuhan and Urumchi to analysis the rule of the cities' visible satellites and GDOP value along with time changing. |
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| Keywords: | GALILEO GPS |
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