Globally convergent blind equalization algorithms for complex data systems

A set of memoryless blind adaptive equalization algorithms for nonminimum phase complex data systems is proposed and evaluated on the basis of admissibility. The algorithms are based on variations of a minimax cost on the equalizer output and actually take the form of gradient descent of linearly constrained convex cost functions. These investigations represent a systematic study based on nontrivial generalizations of admissible designs developed for real data systems. It is shown that for one such candidate generalization admissibility holds.<<ETX>>

[1]  Y. Sato,et al.  A Method of Self-Recovering Equalization for Multilevel Amplitude-Modulation Systems , 1975, IEEE Trans. Commun..

[2]  A. Benveniste,et al.  Robust identification of a nonminimum phase system: Blind adjustment of a linear equalizer in data communications , 1980 .

[3]  Michael G. Larimore,et al.  New processing techniques based on the constant modulus adaptive algorithm , 1985, IEEE Trans. Acoust. Speech Signal Process..

[4]  William A. Sethares,et al.  An approach to blind equalization of non-minimum phase systems , 1991, [Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing.

[5]  Rodney A. Kennedy,et al.  On the admissibility of blind adaptive equalizers , 1990, International Conference on Acoustics, Speech, and Signal Processing.

[6]  D. Godard,et al.  Self-Recovering Equalization and Carrier Tracking in Two-Dimensional Data Communication Systems , 1980, IEEE Trans. Commun..