公开(公告)号：US20150091753A1

公开(公告)日：2015-04-02

申请号：US14461568

申请日：2014-08-18

Applicant: STMicroelectronics S.r.I.

Inventor： Giovanni Gogliettino

IPC: G01S19/27

CPC classification number: G01S19/27 ,  B64G1/1085 ,  B64G1/242 ,  B64G3/00

Abstract: A method of predicting the orbit of a satellite of a satellite positioning system, including: associating first and second types of satellites with first and second models of celestial mechanics forces, respectively; storing first ephemerides data of a satellite, associated to first time intervals and second ephemerides data associated to second time intervals. Further, the method comprises: calculating reference satellite positions based on the first ephemerides data; estimating first and second satellite positions in the first time intervals by using the second ephemerides data and the first and second forces models, respectively; determining first and second estimate errors by comparing the reference positions with the first and second positions, respectively; and detecting the type of satellite between the first and second types by an analysis of the first and second errors.

Abstract translation: 一种预测卫星定位系统的卫星的方法，包括：分别将第一和第二类卫星与第一和第二模型的天体力学力相关联; 存储与第一时间间隔相关联的卫星的第一星历数据和与第二时间间隔相关联的第二星历数据。 此外，该方法包括：基于第一星历数据计算参考卫星位置; 通过使用第二星历数据和第一和第二力模型分别在第一时间间隔估计第一和第二卫星位置; 通过将参考位置与第一和第二位置进行比较来确定第一和第二估计误差; 以及通过分析第一和第二误差来检测第一和第二类型之间的卫星的类型。