Patent ID: 11881970
Assignee: NEC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. The radio wave feature value computation method according to claim 7, further comprising selecting a fixed signal output from one specific individual within a fixed signal of the received communication wave, wherein
the information-1 section and the information-2 section are designated within the selected fixed signal,
in the information-1 section signal processing, Fourier transform is performed on the information-1 section designated within the selected fixed signal, and
in the information-2 section signal processing, Fourier transform is performed on the information-2 section designated within the selected fixed signal,
the radio wave feature value computation method further comprises performing, regarding the selected fixed signal, processing of averaging, for each frequency bin, feature values computed for N times, where N is any natural number.