Detection of spoofed satellite signals
AssigneeRaytheon Company
InventorSteven P. Davies
Life of this patent
Estimating the term…
Abstract
A technology is provided for detecting spoofed satellite signals. An aircraft may be equipped with a top antenna that is adapted to receive satellite signals and a bottom antenna that is adapted to receive terrestrial signals. A signal may be received on the top antenna and the bottom antenna. Relative signal strength between the top antenna and the bottom antenna may be used to differentiate satellite sourced signals from terrestrial sourced signals.
Claims38
A method for detecting spoofed satellite signals, the method comprising:
- receiving a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- determining that the signal is a spoofed satellite signal based on a comparison of the signal strengths received via each of the plurality of antennas with a dynamic threshold;
- and
- determining an authenticated state when relative signal strengths associated with the signal meets the dynamic threshold for confirming that the signal is the authentic satellite signal.
A system for detecting spoofed satellite signals, the system comprising:
- a receiver configured to receive a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- a signal comparison module configured to compare the signal strengths received via the plurality of antennas with a dynamic threshold;
- a signal module configured to determine that the signal is a spoofed satellite signal when the signal strengths are compared against the dynamic threshold,
- wherein the signal module determines an authenticated state when relative signal strengths associated with the signals meet the dynamic threshold for confirming that the signal is the authentic satellite signal.
A method for detecting spoofed satellite signals, the method comprising:
- receiving a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- determining that the signal is a spoofed satellite signal based on a comparison of the signal strengths received via each of the plurality of antennas with a dynamic threshold;
- and
- determining a rejected state when relative signal strengths associated with the signal meets the dynamic threshold for confirming that the signal is a spoofed satellite signal.
A method for detecting spoofed satellite signals, the method comprising:
- receiving a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- determining that the signal is a spoofed satellite signal based on a comparison of the signal strengths received via each of the plurality of antennas with a dynamic threshold;
- and
- determining an unknown state when relative signal strengths associated with the signal does not meet the dynamic threshold for confirming that the signal is an authentic satellite signal nor for confirming that the signal is a spoofed satellite signal from a terrestrial source.
A system for detecting spoofed satellite signals, the system comprising:
- a receiver configured to receive a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- a signal comparison module configured to compare the signal strengths received via the plurality of antennas with a dynamic threshold;
- and
- a signal module configured to determine that the signal is a spoofed satellite signal when the signal strengths are compared against the dynamic threshold,
- wherein the signal module determines a rejected state when relative signal strengths associated with the signals meet the dynamic threshold for confirming that the signal is the spoofed satellite signal from a terrestrial source.
A system for detecting spoofed satellite signals, the system comprising:
- a receiver configured to receive a signal via a plurality of antennas, wherein the plurality of antennas are positioned on an aircraft;
- a signal comparison module configured to compare the signal strengths received via the plurality of antennas with a dynamic threshold;
- and
- a signal module configured to determine that the signal is a spoofed satellite signal when the signal strengths are compared against the dynamic threshold,
- wherein the signal module determines an unknown state when relative signal strengths associated with the signals do not meet the dynamic threshold for confirming that the signal is the authentic satellite signal, nor for confirming that the signal is the spoofed satellite signal from a terrestrial source.
Dependencies are inferred from the claim text.