DETECTION OF SPOOFED SATELLITE SIGNALS

摘要

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.

主权项

1. A method for detecting spoofed satellite signals, the method comprising:
receiving a signal via a first antenna, the first antenna located on an upper portion of an aircraft; receiving the signal via a second antenna, the second antenna located on a lower portion of the aircraft; comparing a first signal strength associated with the signal received via the first antenna with a second signal strength associated with the signal received via the second antenna; and determining that the signal is a spoofed satellite signal being communicated from a terrestrial source when the second signal strength is greater than the first signal strength.