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

Claim 10:
11. A method for providing anti-spoofing capability, 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;

using a beamformer, generating at least:
a first output with a first group of signals corresponding to a first dithered antenna pattern, and

wherein the first group of signals is provided as an input to the first acquisition and tracking circuit; and
using at least a second acquisition and tracking circuit to determine whether a particular downconverted signal is based on an authentic GNSS signal or on a spoofed GNSS signal.