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Realizations and architectures for digital filters using periodically time-varying systems
Abstract
Periodically time-varying systems are used in various applications in the fields of communication and control engineering. In this dissertation, we investigate a new application of PTV systems in designing various realizations and in developing simple architectures for digital filters. Periodic systems realize different computations by reusing the same hardware with different system coefficients. We make use of this fact in developing efficient realizations for digital filters. We develop multiplier-free realizations for IIR and FIR filters by distributing the filter computations over space and time. For multirate systems, we use periodically time-varying systems to remove the redundancies in the filter computations. The proposed realizations are supported with simple, modular VLSI architectures. The realizations and architectures effectively exploit the trade-offs between the speed, the complexity, and the precision in the implementations of digital filters.
Subject Area
Electrical engineering
Recommended Citation
Ghanekar, Sachin P, "Realizations and architectures for digital filters using periodically time-varying systems" (1993). Doctoral Dissertations Available from Proquest. AAI9316653.
https://scholarworks.umass.edu/dissertations/AAI9316653