Industry 4.1. Группа авторов

x(t) and y(t) γ _xy covariance value of two signals: x(t) and y(t) m displacement unit of a signal * complex conjugate of a signal SF _CR(xy) a feature set of CR_xy FFT[n] frequency amplitude at the nth Hz by FFT SF _FFT(q) qth certain frequency band delimited by a lower frequency and an upper frequency Q number of frequency band uf _q qth upper frequency of the critical characteristics; and lf _q qth lower frequency of the critical characteristics. SF _FFT(q) qth FFT‐based SF u uth wavelet packet at level L, u= 1, 2, …, L; v subband length for each wavelet packet at level L, v = N/2^L SF _WPT(u) uth WPT‐based SF h compressed code of the middle layer in AEN; output reconstructed from c in the middle layer of AEN; f _EN encoder layer of AEN; f _DE decoder layer of AEN; f _a activation function of AEN; W _EN network weight for node in the encoder; W _DE network weight for node decoder; b _EN bias for node in the encoder layer; b _DE bias for node in the decoder layer SF _AEN SFs extracted from AEN

References

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      14 14Strang,