赵祥伟,陈正宇

• 1:中国能源建设集团江苏省电力设计院有限公司

摘要(Abstract)：

针对对流层延迟误差与信号频率无关且具有较强的随机性的性质,该文以GGOS Atmosphere发布的格网数据作为真值,依据现有模型的全球残差分析了不同全球天顶对流层延迟模型的时空特征,并将中误差和平均相对误差作为评价指标,在空间维对全球进行分区。以Saastamoinen作为基础模型,构建新的修正模型,在各分区内拟合新模型系数。验证结果显示:相比于Saastamoinen模型,新模型在南半球高纬地区模型计算残差平均值由0.8m降到了0.5m以下,在(0.0~0.2)绝对小误差区间的误差分布比例提升了3%左右,且模型的稳定性得到了保证。

关键词(KeyWords)： 天顶对流层延迟;Saastamoinen模型;时空特征;空间维分区

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 赵祥伟,陈正宇

DOI: 10.16251/j.cnki.1009-2307.2018.05.004

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