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高纬度地区GPT2w模型的适应性分析

姚翔 陈明剑 王建光 陈锐

姚翔, 陈明剑, 王建光, 陈锐. 高纬度地区GPT2w模型的适应性分析[J]. 空间科学学报, 2020, 40(2): 242-249. doi: 10.11728/cjss2020.02.242
引用本文: 姚翔, 陈明剑, 王建光, 陈锐. 高纬度地区GPT2w模型的适应性分析[J]. 空间科学学报, 2020, 40(2): 242-249. doi: 10.11728/cjss2020.02.242
YAO Xiang, CHEN Mingjian, WANG Jianguang, CHEN Rui. Adaptability Analysis of GPT2w Model in High Latitudes[J]. Journal of Space Science, 2020, 40(2): 242-249. doi: 10.11728/cjss2020.02.242
Citation: YAO Xiang, CHEN Mingjian, WANG Jianguang, CHEN Rui. Adaptability Analysis of GPT2w Model in High Latitudes[J]. Journal of Space Science, 2020, 40(2): 242-249. doi: 10.11728/cjss2020.02.242

高纬度地区GPT2w模型的适应性分析

doi: 10.11728/cjss2020.02.242
详细信息
    作者简介:

    姚翔,E-mail:yaoxiang30303@126.com

  • 中图分类号: P351;P228.4

Adaptability Analysis of GPT2w Model in High Latitudes

  • 摘要: GPT2w模型是现有精度最高的天顶对流层模型,但是应用在高纬度地区时存在较大误差.为更好地保障卫星导航定位系统在高纬度地区的高精度应用,评定了GPT2w模型在高纬度地区的精度,获取天顶对流层湿延迟、干延迟和总延迟,探讨了GPT2w模型改正对精密单点定位的影响.试验结果表明: GPT2w模型在高纬度地区的精度为厘米级,优于其在中低纬度地区的精度;南北极地区天顶对流层呈现明显季节变化特征和区域一致性特征,夏季天顶对流层总延迟高于冬季,北极地区天顶对流层湿延迟明显高于南极地区,北极地区天顶对流层随季节的变化幅度大于南极地区.PPP试验结果表明,GPT2w模型能够有效改善定位精度,适应高纬度地区的高精度定位需求.

     

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出版历程
  • 收稿日期:  2018-12-07
  • 修回日期:  2019-07-23
  • 刊出日期:  2020-03-15

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