公开(公告)号：US11719827B2

公开(公告)日：2023-08-08

申请号：US17512841

申请日：2021-10-28

申请人： Regulus Cyber Ltd.

发明人： Yoav Zangvil ,  Dror Katalan ,  Stanislav Gutliansky ,  Avner Zangvil ,  Yonatan Zur

IPC分类号： G01S19/23 ,  G01S19/03 ,  G01S19/21

CPC分类号： G01S19/23 ,  G01S19/03 ,  G01S19/215

摘要： A system for testing a global navigation satellite system (GNSS) receiver includes signal generators, antennas coupled to respective signal generators and having overlapping antenna radiation patterns, and processing circuitry. The signal generators generate respective test signals. Each of the test signals is a combination of multiple GNSS navigational signals which are generated using a set of ranging codes. The processing circuitry selects respective sets of ranging codes for the signal generators, such that the sets of ranging codes are separately insufficient to lock a GNSS receiver and are jointly sufficient to lock a GNSS receiver.

公开(公告)号：US11119221B2

公开(公告)日：2021-09-14

申请号：US17099840

申请日：2020-11-17

申请人： Regulus Cyber Ltd.

发明人： Gal Cohen ,  Yoav Zangvil ,  Stanislav Gutliansky ,  Dror Katalan ,  Avner Zangvil

IPC分类号： G01S19/21 ,  G01S19/06 ,  G01S19/08 ,  G01S19/24

摘要： A device for mitigating satellite navigation spoofing includes processing circuitry which detects correlation peaks for PRNs in a satellite navigation signal. The TOAs of subframes of navigation messages associated with each of correlation peaks are recorded and analyzed to determine if they fall within a specified time window. Based on the analysis, the correlation peaks are classified as legitimate or as spoofed. A correct geographic location is computed from the navigation data associated with the legitimate correlation peaks. Corresponding methods for mitigating satellite navigation spoofing may be embodied in a hardware-based GNSS receiver and in a software-based GNSS receiver.