| 基于转发体制的卫星导航定位性能仿真与分析 |
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| 引用本文： | 万红霞,巩应奎,刘炳成. 基于转发体制的卫星导航定位性能仿真与分析[J]. 国外电子元器件, 2014, 0(1): 6-10 |
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| 作者姓名： | 万红霞 巩应奎 刘炳成 |
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| 作者单位： | [1]中国科学院光电研究院,北京100094 [2]中国科学院大学,北京100190 |
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| 基金项目： | 国家自然科学基金（41204031） |
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| 摘 要： | 基于转发体制卫星导航定位是一种创新的卫星导航方法,有必要分析和验证其定位性能。本文基于虚拟原子钟伪距测量定位原理,提出了定位误差仿真的总体思路,并建立了电离层延迟、对流层延迟、伪距观测量和定位解算等数学模型,最后利用4颗在轨通信卫星对中国典型地区进行了定位误差仿真试验分析。仿真结果表明,部分地区可见星达不到4颗,系统定位误差约10m左右,但某些时段存在定位误差突然增大的现象。
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| 关 键 词： | 转发体制卫星导航 虚拟原子钟 伪距测量 数学模型 定位误差仿真 |
Simulation and analysis of positioning performance for transponding-based satellite navigation |
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| WAN Hong-xia,GONG Ying-kui,LIU Bing-cheng. Simulation and analysis of positioning performance for transponding-based satellite navigation[J]. International Electronic Elements, 2014, 0(1): 6-10 |
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| Authors: | WAN Hong-xia GONG Ying-kui LIU Bing-cheng |
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| Affiliation: | 1. Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China; 2. University of Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | As transponding-based satellite navigation and position is innovative, it is necessary to analyze and validate positioning performance. Based on pseudorange measurement principle with virtual atomic clock, the general idea of positioning error simulation is proposed and the mathematical models including ionospheric delay, tropospheric delay, pseudorange measurements and positioning solution are established. Finally, the positioning error simulation experiment of several typical regions in China with four communication satellites in-orbit is implemented. Results show that the numbers of visible satellites are less than 4 in some regions and positioning error is about 10m while it will increases suddenly within a day part. |
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| Keywords: | transponding-based satellite navigation virtual atomic clock pseudorange measurement mathematicalmodels positioning error simulation |
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