Generalized multimodulus technique for blind equalization

Details Generalized multimodulus technique for blind equalization Generalized multimodulus technique for blind equalization

1996-12-12

1999-08-17

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

375233, 3647242, H04L 2701

Patent

active

059404400

ABSTRACT:
A generalized form of a multimodulus algorithm (GMMA) is described for use in blind equalization. A receiver uses a signal point constellation representing 256 levels. This signal space is divided into sample, or data, subsets. Cost function minimization is done with respect to each sample subset.

REFERENCES:
patent: 4227152 (1980-10-01), Godard et al.
patent: 5793807 (1998-08-01), Werner et al.
Sethares, W., Rey, G.A., and Johnson, C.R., Jr., "Approaches to Blind Equalization of Signals with Multiple Modulus," Proc. 1989 Int'l Conf. on Acoustics, Speech and Signal Processing, pp. 972-975, May 1989.
Axford, R.A., Jr., Milstein, L.B., and Zeidler, J.R., "A Dual-Mode Algorithm for Blind Equalization of QAM Signals: CADAMA," Conf. Record of 29th Asilomar Conf. on Signals, Systems & Computers, pp. 172-176, Oct. 1995.
You, C., and Hong, D., "Blind Adaptive Equalization Techniques Using the Complex Multi-Layer Perceptron," Proc. IEEE Globecom 1996, pp. 1340-1344, Nov. 1996.
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Y. Sato, "A Method of Self-Recovering Equalization for Multilevel Amplitude-Modulation Systems," IEEE Trans. Commun., pp. 679-682, Jun. 1975.
A. Benveniste and M. Goursat, "Blind Equalizers", IEEE Trans. Commun., vol. 32, No. 8, pp. 871-883, 1984.
N.K. Jablon, "Joint Blind Equalization, Carrier Recovery, and Timing Recovery for High-Order QAM Signal Constellations", IEEE Trans. Signal Processing, vol. 40, No. 6, pp. 1383-1897, 1992.
S. Chen, S. McLaughlin, P. M. Grant and B. Mulgrew, "Multi-Stage Blind Clustering Equaliser", IEEE Trans. Commun., vol. 43, No. 2/3/4, pp. 701-705, Feb./Mar./Apr. 1995.
J. K. Tugnait, "Blind Equalization and Estimation of Digital Communication FIR Channels Using Cumulant Matching", IEEE Trans. Commun., vol. 43, No. 2/3/4 pp. 1240-1245, Feb./Mar./Apr. 1995.
J. J. Werner, "Tutorial on Carrierless AM/PM--Part I--Fundamentals and Digital CAP Transmitter", Contribution to ANSI X3T9.5 TP/PMD Working Group, Minneapolis, Jun. 23, 1992.

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