Patent ID: 8768260

Claim:
An electromagnetic wave discrimination device that discriminates electromagnetic waves, comprising: an acquisition section that receives communication signals of a predetermined frequency, and samples waveform data of the communication signals every predetermined time to obtain sample data for each predetermined time; a feature quantity calculation section that calculates amplitude feature quantities for each predetermined time, based on the sampling data for each predetermined time; a similarity calculation section that calculates degrees of similarity with respect to the amplitude feature quantities for each predetermined time; a classification section that classifies the communication signals for each predetermined time into clusters to obtain cluster analysis results of the communication signals for each predetermined time, based on the degrees of similarity; a discrimination section that discriminates communication signals constituting one cluster for each of the clusters to obtain discrimination results, based on the cluster analysis results of the communication signals for each predetermined time; an output section that outputs the discrimination results; and a storage section that stores the amplitude feature quantities, the degrees of similarity, the cluster analysis results, and the discrimination results.