Analysis of influence of ionosphere and troposphere model on RAIM availability of COMPASS

Wei-dong JIAO; Zhi-hu TANG; Xiao-yun SHEN

doi:10.11959/j.issn.1000-436x.2015072

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Analysis of influence of ionosphere and troposphere model on RAIM availability of COMPASS

Academic paper | 更新时间：2024-06-05

- Analysis of influence of ionosphere and troposphere model on RAIM availability of COMPASS
- Journal of Communications Vol. 36, Issue 3, Pages: 179-186(2015)
- 作者机构：
  
  中国民航大学智能信号和图像处理天津市重点实验室，天津 300300
- 作者简介：
- 基金信息：
  
  The Natural Science Foundation of China and the Civil Aviation Administration of China(61079009);The Cen-tral University Basic Scientific Research Business Expenses(3122013c016)
- DOI：10.11959/j.issn.1000-436x.2015072
  CLC： TP391.9
- Online First：2015-03，
  
  Published：25 March 2015
- 稿件说明：
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Wei-dong JIAO, Zhi-hu TANG, Xiao-yun SHEN. Analysis of influence of ionosphere and troposphere model on RAIM availability of COMPASS[J]. Journal of Communications, 2015, 36(3): 179-186.
DOI：

Wei-dong JIAO, Zhi-hu TANG, Xiao-yun SHEN. Analysis of influence of ionosphere and troposphere model on RAIM availability of COMPASS[J]. Journal of Communications, 2015, 36(3): 179-186. DOI： 10.11959/j.issn.1000-436x.2015072.

摘要

电离层和对流层是卫星导航系统测量的主要误差源，也是北斗卫星导航系统可用性变化的重要因素。采用星历数据仿真分析了电离层和对流层延迟误差模型对北斗导航系统RAIM可用性的影响，特别分析了不同对流层模型对民用航空的影响。实验表明电离层和对流层的延迟误差分别为0～14.555 9m及0～23.779 6m，且在民用航空的非精密进近阶段，用Saastamoinen 模型、UNB3模型及 Hopfield模型分别作为北斗的对流层误差模型的RAIM可用性分别为99.308%、92.041 5%和100%，相比较Hopfield模型更适合作为北斗卫星导航系统的对流层模型，能满足民用航空的99.9%RAIM可用性要求。

Abstract

The ionosphere and troposphere are main error sources of satellite navigation system measurement and main factors of COMPASS availability. The influence of the ionosphere and troposphere delay error model on the RAIM availability of COMPASS is analyzed in simulation where ephemeris datum is adopted

and especially the influence of different troposphere models on RAIM availability in civil aviation is analyzed. The experiment at results shows that the delay error of ionosphere and troposphere changes from 0 to 14.555 9 m and 0 to 23.779 6 m correspondingly. And for the non-precision approach stage of civil aviation

when Saastamoinen model

UNB3 model and Hopfield model are used as the troposphere model of COMPASS respectively

the RAIM availability is 99.308%

92.041 5% and 100% corre-spondingly. So it is more suitable that Hopfield model is used as the troposphere model of COMPASS and the 99.9% RAIM availability requirement in civil aviation can be achieved using this model.

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