Method and device for determining availability of ARAIM system
US9958551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2017 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Oct 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/41
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating the availability of ARAIM system is provided. A satellite position coordinate and clock offset of each satellite at a current time point and several time points before the current time point are received. Empirical mode decomposition is performed on the position coordinate and the clock offset respectively, to obtain a position coordinate mode component and a clock offset mode component of each satellite at each time point. A position coordinate mode component and a clock offset mode component of each satellite at a time point next to the current time point are obtained respectively. According to the position coordinate mode component and the clock offset mode component of each satellite at the time point next to the current time point, a position coordinate mode component and a clock offset mode component of each satellite at a next time point is obtained, thereby obtaining an evaluation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.