Detection of multiple spoofed or faulty global navigation satellite signals
US12117535B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2022 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Dec 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for detecting multiple spoofed or faulty global navigation satellite signals are provided. The system comprises a single antenna configured to receive satellite signals from a plurality of global navigation satellites, the single antenna located on a vehicle; a receiver in the vehicle, the receiver coupled to the single antenna; and at least one processor in the vehicle, the processor in communication with the single antenna through the receiver. The processor is operative to determine a unit vector in a direction from the vehicle to a global navigation satellite in local coordinates, from the satellite signals; determine a plurality of signal blocks, wherein the signal blocks are a collection of subsets of the satellite signals and a covariance matrix for the satellite signals; and determine which satellite signals in the signal blocks are spoofed or faulty by comparing a geometry of the local coordinates with satellite coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.