Systems and methods to monitor for false alarms from ionosphere gradient monitors
US9581698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods to monitor for false alarms from ionosphere gradient monitors are provided. In one embodiment, a method for mitigating false gradient alarms in a satellite navigation Ground Based Augmentation System (GBAS) ground station comprising a plurality of satellite navigation system reference receivers comprises: generating an alarm signal with an ionosphere gradient monitor (IGM) at the GBAS ground station; determining whether the alarm signal is a false alarm based on data derived from carrier phase measurements received from the plurality of satellite navigation system reference receivers; and blocking the alarm signal for at least a first duration of time based on the determining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.