Stability Analysis of Fixed-Point Digital Filters using Computer Generated Lyapunov Functions- Part II: Wave Digital Filters and Lattice Digital Filters

A. Michel
Kelvin T. Erickson, Missouri University of Science and Technology

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In a companion paper [4], we utilize the constructive stability algorithm of Brayton and Tong in the stability analysis of fixed-point digital filters which are in the direct form and in the coupled form. We continue this work in the present paper by considering wave digital filters and lattice digital filters. We believe that the results of the present paper and its companion paper demonstrate that the constructive algorithm constitutes an effective and general approach in the qualitative analysis of fixed-pointed digital filters.