Identifying and partitioning legitimate GNSS satellite signals from illegitimate GNSS satellite signals using a contrario method
US11231504B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/243
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are systems, methods, and devices for identifying correct satellite signals to improve the accuracy of a satellite navigation system. In some embodiments, identifying correct satellite signals may include receiving a plurality of satellite signals; demodulating the satellite signals to extract a first plurality of parameters; determining a first subset of parameters from the first plurality of parameters, wherein the first subset of parameters is based on a first geographic location; determining a second subset of parameters from a second plurality of parameters outside the first subset, the second plurality of parameters comprising one or more parameters of the first plurality of parameters outside the first subset, wherein the second subset of parameters is based on a second geographic location; and identifying an exemplary subset from the first subset and the second subset, wherein the exemplary subset comprises parameters corresponding to correct satellite signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.