While logistics preclude a comparison of the complete set of algorithms that have been mentioned in chapter 2, it is possible to examine the performance of a subset whose elements are representative of the three classes into which adaptive filters may be divided. These three classes are: (i) stochastic gradient search algorithms such as the LMS algorithm of subsection 2.5.1 and the BLMS algorithm of subsection 2.5.2, (ii) self-orthogonalising or transform domain algorithms such as the sliding DFT structure of subsection 2.6.1, and (iii) least squares techniques such as the simple RLS algorithm of subsection 2.4.1. The convergence performance of one or two algorithms from each class will be studied by computer simulation.
KeywordsInput Sequence Adaptive Filter Channel Impulse Response Channel Equalisation Unknown System
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