GNSS掩星大气探测星座构型设计研究

【作者】 李成； 王珏瑶； 王志强；

【机构】 深圳航天东方红海特卫星有限公司； 哈尔滨工业大学； 北京跟踪与通信技术研究所；

【摘要】 基于无线电掩星技术的天基GNSS掩星大气探测方法具有高垂直分辨率、全天时全天候探测、无需在轨标定等特点,是一种经济、有效的新型大气探测手段。开展GNSS掩星大气探测星座研究应用,有利于改善我国气象研究应用中大气探测数据不足的现状,提高数值天气预报精度。本文依据天基GNSS掩星大气探测原理,分析了卫星轨道参数及星座构型参数对GNSS掩星探测性能的影响。根据数值天气预报要求,设计了兼容GPS、GLONASS、Galileo和北斗导航卫星系统的GNSS掩星大气探测星座构型方案,并通更多还原

【Abstract】 Space-based GNSS occultation sounding is an economic and efficient new method for atmosphere exploration.It is based on radio occultation technology and may provide all-weather all-time high vertical resolutions without on-orbit calibration.The study and application of GNSS occultation sounding satellite constellation is important for the climate research and the numerical meteorological predict in China.According to the radio occultation sounding principle,this paper first analyzes the effect of the LEO satellite’ s orbit parameters and constellation configuration parameters on the number and distribution of the occultation events.Then the GNSS occultation sounding constellation configurations are designed on the demand of the numerical meteorological predict.Finally,through the GNSS occultation sounding simulations,the constellation configuration with the best performance on occultation events distribution is chosen.更多还原