Detection of manipulated satellite time signals
US9599719B2 · kind B2 · utility
5Cited by
51References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Aug 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a system for detecting manipulation of a GNSS signal and mitigating against such manipulation. A GNSS receiver receives GNSS signals from a plurality of GNSS satellites, and calculates event times for each GNSS satellite. The GNSS receiver then compares a next event time for a particular GNSS satellite with an expected next event time for the particular GNSS satellite. If the difference between the expected next event time and the next event times exceeds a predetermined threshold, then the GNSS receiver indicates that signal integrity may be compromised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.