Patent ID: 11927678
Assignee: L3HARRIS INTERSTATE ELECTRONICS CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A method for providing anti-spoofing capability from a first global navigation satellite system (GNSS) receiver to a second GNSS receiver, the method comprising:
acquiring and tracking multiple downconverted signals using a first acquisition and tracking circuit;
determining:
which of the multiple downconverted signals are based on authentic GNSS signals, and
which of the multiple downconverted signals are based on spoofed GNSS signals;

wherein the GNSS comprises a global positioning system (GPS), and
wherein the multiple downconverted signals comprise at least a first downconverted authentic signal and a second downconverted spoofed signal,
independently tracking the first downconverted authentic signal and the second downconverted spoofed signal,
wherein the first downconverted authentic signal and the second downconverted spoofed signal have different timing offsets.