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

Claim 5:
6. 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;

a beamformer at least partially controlled by the processor, wherein the beamformer is configured to generate a plurality of dithered antenna patterns;
at least a second acquisition and tracking circuit configured to receive one or more groups of signals corresponding to the plurality of dithered antenna patterns; and
GNSS signal replicators configured to generate replicas of authentic GNSS signals using timing settings used by at least the first acquisition and tracking circuit and the second acquisition and tracking circuit.