Abstract
This paper presents an improved algorithm for classification of M-Differential Phase-Shift Keying(MDPSK) signals based on cumulant. The feature proposed in the algorithm is invariant with respect to constellation scale, rotation, the shift and the carrier frequency offset between transmitter and receiver. The invariant property is proved theoretically. Through computer simulation the performance is evaluated and the results show that the improved classification algorithm is better and valuable in practice.
Similar content being viewed by others
References
K. Kim, A. Polydoros, On the detection and classification of quadrature digital modulations in broadband noise, IEEE Trans. on Commun., 38(1990)8, 1199–1211.
A. K. Nandi, E. E. Azzouz, Algorithms for automatic modulation recognition of communication signals, IEEE Trans. on Commun., 46(1998)4, 431–436.
F. Beidas, L. Weber, Asynchronous classification of MFSK signals using the higher order correlation domain, IEEE Trans. on Commun., 46(1998)4, 480–493.
A. Swami, B. M. Sadler, Hierarchical digital modulation classification using cumulants, IEEE Trans. on Commun., 48(2000)3, 416–429.
Yang Shaoquan, Chen Weidong, Classification of MPSK signals using cumulant invariants, Journal of Electronics(China), 19(2002)1, 99–103.
C. Schreyogg, K. Kittel, Robust classification of modulation types using spectral features applied to HMM, Milcom. 97, 3(1997)12, 1337–1381.
Author information
Authors and Affiliations
Additional information
Supported by China TRAPOYT, 863 Project(2001AA123031) and National Natural Science Foundation of China (No.69872028)
About this article
Cite this article
Han, G., Li, J. & Chen, C. Robust modulation classifier based on cumulants for MDPSK with frequency offset. J. of Electron.(China) 21, 177–183 (2004). https://doi.org/10.1007/BF02687869
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02687869