| “北斗二号”卫星导航系统覆盖仿真分析 |
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| 引用本文： | 陈岩,陈晖,丁前军.“北斗二号”卫星导航系统覆盖仿真分析[J].通信技术,2009,42(6):171-173. |
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| 作者姓名： | 陈岩 陈晖 丁前军 |
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| 作者单位： | 1. 空军装备研究院,北京,100085;空军工程大学,电讯工程学院,陕西,西安,710077
2. 空军装备研究院,北京,100085 |
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| 摘 要： | 论述了“北斗一号”卫星导航系统存在的不足，对于“北斗二号”区域卫星导航系统及其所采用的三种导航卫星进行了介绍。通过对所选区域及六个有代表性城市的几何精度衰减因子（GDOP）和可见星数进行仿真，验证了系统的可用性。同时，仿真表明系统对于我国部分地区的覆盖相对较差，部分时间段内的GDOP波动较大，说明系统中卫星的相对位置还应进行调整。
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| 关 键 词： | 北斗一号 北斗二号 仿真 几何精度衰减因子 可见星数 |
Analysis and Simulation on Coverage of No.2 Beidou Satellite Navigation System |
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| CHEN Yan,CHEN Hui,DING Qian-jun.Analysis and Simulation on Coverage of No.2 Beidou Satellite Navigation System[J].Communications Technology,2009,42(6):171-173. |
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| Authors: | CHEN Yan CHEN Hui DING Qian-jun |
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| Affiliation: | CHEN Yan, CHEN Hui, DING Qian-jun (1.Equipment Academy of Air force, Beijing 100085, China 2.Telecommunication Engineering Institute of Air Force Engineering University, Xi＇ an Shaanxi 710077, China) |
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| Abstract: | The insufficiency of No.l Beidou satellite navigation system is satellite navigation system and three kinds of navigation satellite used in discussed, No. 2 the system are Beidou regional presented. The availability of the system is validated through the simulation of the area and six representative cities about Geometric Dilution Of Precision（GDOP） and N Asset Coverage. At the same time, the simulation shows that some regions of China are not well covered, and the GDOP in certain that the relative position of the satellites should be span of time has a obvious fluctuation, these indicate further adjusted. |
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| Keywords: | No 1 Beidou system： No 2 Beidou system： simulation GDOP N Asset Coverage |
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