专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100090889A1 PRECISE ORBIT DETERMINATION SYSTEM AND METHOD USING GPS DATA AND GALILEO DATA 审中-公开
标题翻译：精确的轨道确定系统和使用GPS数据和GALILEO数据的方法
公开(公告)号：US20100090889A1
公开(公告)日：2010-04-15
申请号：US12443464
申请日：2007-09-17
申请人： Yoola Hwang , Byoung-Sun Lee , Hae-Yeon Kim , Jae-Hoon Kim
发明人： Yoola Hwang , Byoung-Sun Lee , Hae-Yeon Kim , Jae-Hoon Kim
IPC分类号： G01S19/41
CPC分类号： G01S19/42 , G01S19/09 , G01S19/14 , G01S19/33 , G01S19/39
摘要： Provided are a method and system for determining a precise orbit of a LEO satellite. The method includes: estimating a precise ephemeris of a global positioning system (GPS) satellite by fitting an orbit perturbation-based GPS dynamics model to observation data of the GPS satellite received from a GPS observatory and estimating a precise ephemeris of a Galileo satellite by fitting an orbit perturbation-based Galileo dynamics model to observation data of the Galileo satellite received from a Galileo observatory; determining an initial orbit value of a LEO satellite by fitting an orbit perturbation-based LEO satellite's basic dynamics model to navigation data received from the LEO satellite; and determining the precise orbit of the LEO satellite by calculating a difference between observation values, which are calculated based on a GPS and Galileo data received from the LEO satellite, the GPS observatory and the Galileo observatory, and calculated values, which are calculated based on an orbit perturbation-based LEO satellite's dynamics model that was calculated using the initial orbit value of the LEO satellite and the precise ephemeris of the GPS and Galileo satellites. Since both the GPS and Galileo data are received and used to determine the precise orbit of a LEO satellite, more precise orbit determination can be achieved.
摘要翻译：提供了一种用于确定LEO卫星的精确轨道的方法和系统。该方法包括：通过将基于轨道扰动的GPS动力学模型拟合到从GPS天文台接收的GPS卫星的观测数据，估计全球定位系统（GPS）卫星的精确星历，并通过拟合估计伽利略卫星的精确星历基于轨道扰动的伽利略动力学模型，用于从伽利略天文台收到的伽利略卫星的观测数据; 通过将基于轨道扰动的LEO卫星的基本动力学模型拟合到从LEO卫星接收的导航数据来确定LEO卫星的初始轨道值; 以及通过计算基于从LEO卫星，GPS天文台和伽利略天文台接收的GPS和伽利略数据计算的观测值之间的差异以及基于以下计算的计算值来确定LEO卫星的精确轨道：使用LEO卫星的初始轨道值和GPS和伽利略卫星的精确星历计算的基于轨道扰动的LEO卫星动力学模型。由于GPS和伽利略数据都被接收并用于确定LEO卫星的精确轨道，因此可以实现更精确的轨道确定。

IPRDB

热门服务

关于我们

友情链接

联系方式