Automatic modulation classification using statistical moments and a fuzzy classifier

This paper presents a new digital modulation recognition algorithm for classifying baseband signals in the presence of additive white Gaussian noise. An elaborated classification technique uses various statistical moments of the signal amplitude, phase, and frequency applied to the fuzzy classifier. Classification results are given and it is found that the technique performs well at low SNR. Benefits of this technique are that it is simple to implement, has a generalization property, and requires no a priori knowledge of the SNR, carrier phase, or baud rate of the signal for classification.

[1]  R. J. Holbeche,et al.  Classification of PSK signals using the DFT of phase histogram , 1995, 1995 International Conference on Acoustics, Speech, and Signal Processing.

[2]  S. Taira,et al.  Automatic classification of analogue modulation signals by statistical parameters , 1999, MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341).

[3]  P.R.U. Lallo,et al.  Signal classification by discrete Fourier transform , 1999, MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341).

[4]  C. Schreyogg,et al.  Robust classification of modulation types using spectral features applied to HMM , 1997, MILCOM 97 MILCOM 97 Proceedings.

[5]  Elsayed Elsayed Azzouz,et al.  Modulation recognition using artificial neural networks , 1997, Signal Process..

[6]  Kiseon Kim,et al.  On the detection and classification of quadrature digital modulations in broad-band noise , 1990, IEEE Trans. Commun..

[7]  J. Sills.  Maximum-likelihood modulation classification for PSK/QAM , 1999, MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No.99CH36341).

[8]  Friedrich K. Jondral,et al.  Automatic classification of high frequency signals , 1985 .

[9]  Samir S. Soliman,et al.  Signal classification using statistical moments , 1992, IEEE Trans. Commun..

[10]  Elsayed Elsayed Azzouz,et al.  Automatic identification of digital modulation types , 1995, Signal Process..

[11]  J. E. Hipp.  Modulation Classification based on Statistical Moments , 1986, MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's.