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

Claim 18:
19. 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;
determining which of the acquired multiple downconverted signals are based on authentic GNSS signals and which of the multiple downconverted signals are based on spoofed GNSS signals;
generating replicas of authentic GNSS signals based on timing settings used in acquiring and tracking the multiple downconverted signals that are based on authentic GNSS signals; and
using a beamformer, generating at least an output with a group of signals, wherein the output corresponds to a first antenna pattern, wherein the group of signals is provided as an input to the first group of acquisition and tracking functions, wherein the first group of acquisition and tracking functions are used by the processor to determine whether a particular downconverted signal is based on an authentic GNSS signal or on a spoofed GNSS signal.