... filtering,IEEE SignalProcessing Magazine, 11(3), 18–60, July 1994.The time-domain feedback and small gain analyses of adaptive filters, along with extensions tononlinear settings and connections ... ¯µ(·)].20.9.3 Energy Propagation in the Feedback CascadeBy studying the energy flow in the feedback interconnection of Fig. 20.4, we can also obtain somephysical insights into the convergence behavior ... spurred an increase in the range ofnew adaptive filtering applications in fields ranging from biomedical engineering to wireless com-munications. For these new areas, it is increasingly important...