Patent ID: 11860283
Assignee: GE AVIATION SYSTEMS LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A non-transitory computer-readable medium storing a spoofing detection program that causes a computer to:
receive from a receiver an apparent satellite signal;
determine at least two characteristic signatures of the apparent satellite signal including a power level of the received apparent satellite signal and a waveform of the apparent satellite signal;
compare the power level with an expected power level of a signal received from a satellite in orbit to define a first difference value;
compare the waveform of the apparent satellite signal with an expected waveform of the signal received from the satellite in orbit to define a second difference value; and
indicate that the apparent satellite signal is a spoofed satellite signal when at least one of the first or second difference value is outside a predetermined tolerance value.