发明名称 |
METHOD AND APPARATUS FOR PREDICTING THE ORBIT AND DETECTING THE TYPE OF A SATELLITE |
摘要 |
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. |
申请公布号 |
US2015091753(A1) |
申请公布日期 |
2015.04.02 |
申请号 |
US201414461568 |
申请日期 |
2014.08.18 |
申请人 |
STMicroelectronics S.r.I. |
发明人 |
Gogliettino Giovanni |
分类号 |
G01S19/27 |
主分类号 |
G01S19/27 |
代理机构 |
|
代理人 |
|
主权项 |
1. Method of predicting an orbit of a satellite of a satellite positioning system, comprising:
associating first and second models of celestial mechanics forces with first and second types of satellites, respectively; storing first ephemerides data of a satellite, associated with first time intervals, and second ephemerides data of the satellite, associated with second time intervals distinct from the first time intervals; calculating reference positions of the satellite 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. |
地址 |
Agrate Brianza (MB) IT |