Characterizing the Performance of Adaptive Filters 19.3 Analytical Models, Assumptions, and Definitions System Identification Model for the Desired Response Signal • Statistical Models for the Input Signal • The Independence Assumptions • Useful Definitions 19.4 Analysis of the LMS Adaptive Filter Mean Analysis • Mean-Square Analysis 19.5 Performance Issues Basic Criteria for Performance • Identifying Stationary Systems • Tracking Time-Varying Systems Normalized Step Sizes • Adaptive and Matrix Ste