毛健, 朱长青, 郭继发. 一种新的全球对流层天顶延迟模型[J]. 武汉大学学报 ( 信息科学版), 2013, 38(6): 684-688.
引用本文: 毛健, 朱长青, 郭继发. 一种新的全球对流层天顶延迟模型[J]. 武汉大学学报 ( 信息科学版), 2013, 38(6): 684-688.
MAO Jian, ZHU Changqing, GUO Jifa. A New Global Zenith Tropospheric Delay Model[J]. Geomatics and Information Science of Wuhan University, 2013, 38(6): 684-688.
Citation: MAO Jian, ZHU Changqing, GUO Jifa. A New Global Zenith Tropospheric Delay Model[J]. Geomatics and Information Science of Wuhan University, 2013, 38(6): 684-688.

一种新的全球对流层天顶延迟模型

A New Global Zenith Tropospheric Delay Model

  • 摘要: 利用IGS提供的高精度对流层天顶延迟数据,在全球范围内详细分析对流层延迟在高程及水平方向的变化规律,建立了一种新的全球对流层天顶延迟模型。该模型计算方法简单,只与年积日和位置参数有关,无需气象参数。经检验,新模型的对流层延迟改正精度优于输入标准气象参数的几种常用的对流层延迟模型,满足卫星实时定位和导航的精度要求。

     

    Abstract: In real-time navigation and positioning of the satellite,the zenith tropospheric delay model is used to decrease tropospheric delay by requiring meteorological parameters,but this requirement reduces the accuracy of the model.Therefore,we analyze the variation of troposphere in the elevation and the horizontal respectively on the global scale by requiring the high-precision zenith tropospheric delay data which come from IGS.Based on the analysis,we put forward a new zenith tropospheric delay model which can meet the need of the real-time positioning and navigation of the satellite.The reason is that not only the new model is simple as its input parameters are day of year and location of the station without meteorological parameters but also its accuracy is best compared with several commonly used models.

     

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