A Passivity Based Approach for Digital Filters Subjected to External Disturbance and Nonlinearities
| Autor: | C. G. Parthipan, Priyanka Kokil, Srinivasulu Jogi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Computer science 020208 electrical & electronic engineering Passivity Linear matrix inequality 02 engineering and technology Interference (wave propagation) Stability (probability) Stability conditions 020901 industrial engineering & automation Exponential stability Control and Systems Engineering Control theory 0202 electrical engineering electronic engineering information engineering Digital filter Complement (set theory) |
| Zdroj: | IFAC-PapersOnLine. 53:428-434 |
| ISSN: | 2405-8963 |
| DOI: | 10.1016/j.ifacol.2020.06.072 |
| Popis: | The aim of this work is to present a passivity based approach for stability analysis of state-space digital filters realized with fixed-point arithmetic and generalized overflow nonlinearities. The criterion ensures the digital filter is free from limit cycle oscillations subjected to overflow nonlinearities and external interference. The stability conditions of the digital filter are formulated via passivity based approach under different nonlinearities, namely, zeroing, saturation, two’s complement, and triangular. The criterion also ensures the asymptotic stability without external interference. The proposed work is in linear matrix inequality framework and hence, is computationally tractable. Sufficient numerical examples are provided in support of established results. |
| Databáze: | OpenAIRE |
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