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

Claim 7:
8. An apparatus comprising a first global navigation satellite system (GNSS) receiver, the apparatus comprising:
a first acquisition and tracking circuit comprising at least a matched filter, the first acquisition and tracking circuit configured to track a plurality downconverted signals;
a processor configured to determine:
which of the plurality of downconverted signals are based on authentic GNSS signals, and
which of the plurality of downconverted signals are based on spoofed GNSS signals; and

a beamformer at least partially controlled by the processor, wherein the beamformer is configured to output a group of signals corresponding to a first antenna pattern, wherein the group of signals is provided as an input to the first acquisition and tracking circuit; and
wherein the processor is configured to utilize the first acquisition and tracking circuit to determine whether a particular downconverted signal is based on an authentic GNSS signal or on a spoofed GNSS signal.