CPC H04W 12/122 (2021.01) [G01S 5/0284 (2013.01); H04W 4/80 (2018.02); G01S 2205/07 (2020.05); G16Y 40/50 (2020.01); G16Y 40/60 (2020.01)] | 22 Claims |
1. A non-transitory computer readable medium storing instructions executable by at least one processor, the instructions, when executed by said processor, cause said processor to operate with a single antenna to:
receive a wireless signal comprising at least one frame, each of said frame comprising a repeating portion;
determine a difference of phase and amplitude of the repeating portion; and
determine whether the wireless signal is transmitted from a trusted source based at least in part on the difference of phase and amplitude of the repeating portion.
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