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1.引言跟踪数据的大气折射修正研究已相当深入,并已发表许多修正公式。对某些地球和海洋物理应用来说,希望位置精度小于几厘米,因此这样的精度比起以前绝大多数应用要求要高得多。除本文介绍的方法以外,只有资料〔3〕的方法和Saastamoinen的展开和积分求值,才能提供低仰角(10°～20°)时所需的精度。在本文中,把Saasta-moinen的积分求值插入Marini的连续分
1. INTRODUCTION Atmospheric refraction correction of tracking data has been extensively studied and many correction formulas have been published. For some earth and marine physics applications, position accuracy is expected to be less than a few centimeters, so accuracy is much higher than most previous applications require. Except for the method described in this paper, only the method [3] and Saastamoinen expansion and integral evaluation are used to provide the accuracy required for low elevation angles (10 ° to 20 °). In this article, the Saasta-moinen integral evaluation is inserted into Marini’s consecutive points