| 卫星导航几何因子的分析和仿真 |
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| 引用本文： | 丛丽,Ahmed I Abidat,谈展中.卫星导航几何因子的分析和仿真[J].电子学报,2006,34(12):2204-2208. |
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| 作者姓名： | 丛丽 Ahmed I Abidat 谈展中 |
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| 作者单位： | 北京航空航天大学电子信息工程学院,北京 100083 |
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| 摘 要： | 根据卫星导航几何因子GDOP在具体课题中的应用,从五个主要方面对其进行了研究,可知不同星座配置参数对不同纬度地区GDOP会产生影响;坐标转换时GDOP、PDOP和TDOP不变, HDOP、VDOP变化;GDOP随卫星数目增加单调递减,但递减幅度变小;卫星对GDOP贡献越大,其故障产生的定位误差越大;使用加权GDOP可有效的减小定位误差.
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| 关 键 词： | 卫星导航 DOP 星座配置参数 定位精度 加权GDOP |
| 文章编号： | 0372-2112（2006）12-2204-05 |
| 收稿时间： | 2005-07-25 |
| 修稿时间： | 2005-07-252006-05-08 |
Analysis and Simulation of the GDOP of Satellite Navigation |
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| CONG Li,Ahmed I Abidat,TAN Zhan-zhong.Analysis and Simulation of the GDOP of Satellite Navigation[J].Acta Electronica Sinica,2006,34(12):2204-2208. |
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| Authors: | CONG Li Ahmed I Abidat TAN Zhan-zhong |
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| Affiliation: | School of Electronic and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | Based on the application of Geometry Dilution of Precision(GDOP),5 main aspects of GDOP are studied.It is concluded that different constellation parameters influence GDOP of different latitude.GDOP,PDOP and TDOP are not changed but HDOP and VDOP are changed by coordinate conversion.GDOP decreases along with the number of satellites,but the decreasing extent reduces too.The more a satellite contributes to GDOP,the more the positioning error it produces when it has fault.Using weighted GDOP reduces the positioning error effectively. |
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| Keywords: | DOP |
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