US 11,656,362 B2
System and method for providing cyber security for satellite-based navigation systems
Nadav Lavi, Ramat-Hasharon (IL); and Kobi Scheim, Pardess-Hanna (IL)
Assigned to TUPAIA LTD., Ramat-Hasharon (IL)
Filed by Tupaia Ltd., Ramat-Hasharon (IL)
Filed on Nov. 16, 2020, as Appl. No. 17/99,169.
Claims priority of provisional application 62/937,820, filed on Nov. 20, 2019.
Prior Publication US 2021/0149058 A1, May 20, 2021
Int. Cl. G01S 19/21 (2010.01); H04W 12/122 (2021.01)
CPC G01S 19/21 (2013.01) [G01S 19/215 (2013.01); H04W 12/122 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A method for detecting cyber-attacks, comprising:
obtaining satellite data for a location of a fixed, substantially ground-level sensor for at least one satellite that the ground-level sensor has visibility to, wherein the satellite data is derived by the ground-level sensor;
obtaining satellite data for a location of a fixed, above-ground sensor, wherein the satellite data for the location of the above-ground sensor is derived by the above-ground sensor, the satellite data for the location of the above-ground sensor being for at least one satellite that the above-ground sensor has visibility to, the above-ground sensor being within a prescribed distance range to the ground-level sensor so that both the satellite data for the location of the above-ground sensor and the satellite data for the location of the ground-level sensor are at least from the at least one satellite; and
when, based on the satellite data for both the location of the ground-level sensor and the location of the above-ground sensor, a determination is made that the obtained satellite data for the location of the ground-level sensor is
invalid,
(i) extracting a list of GNSS devices in a region where the ground-level sensor is deployed, and
(ii) alerting each GNSS device in the list of GNSS devices on a potential cyber-attack.