Robustness and convergence of adaptive schemes in blind equalization and neural network training
Ali H. Sayed, Markus Rupp · Infoscience (Ecole Polytechnique Fédérale de Lausanne) · 1996
We pursue a time-domain feedback analysis of adaptive schemes with nonlinear update relations. We consider commonly used algorithms in blind equalization and neural network training and study their performance in a purely deterministic framework. The derivation employs insights from system theory and feedback analysis, and it clarifies the combined effects of the step-size parameters and the nature of the nonlinear functionals on the convergence and robustness performance of the adaptive schemes.