Global Blind Equalization via Generalized Pattern Search Optimization and Channel Surfing Reinitialization

A. Zaouche, I. Dayoub, J.M. Rouvaen, and F. Shebli (France)

Keywords

Constant modulus algorithm, generalized pattern search optimization, channel surfing reinitialization.

Abstract

A new method for blind channel equalization is described here. The potentially unimodal cost function used relies on higher order statistics. It is optimized following a pattern search algorithm. The convergence to the global minimum is however not unconditionally warranted, but a channel surfing re-initialization strategy may help to find the true global minimum. The whole algorithm is detailed. Simu lation results are given for an example channel, which un dergoes one severe fading in its magnitude frequency re sponse.

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