2026
Passivity and Practical Stability of Fast-Sampled Quantized Discrete-Time Nonlinear Systems with Finite-Register Effects
الباحثونOthman M. Hussein Anssari، Raoof Hazim Kareem, Abdullah Makki Jebur
المجلة International Information and Engineering Technology Association (IIETA)
التاريخ2026-04-30
مختصر البحث
Digital implementation of nonlinear control laws inevitably introduces quantization, saturation, and finite-word-length arithmetic that can degrade nominal stability. This paper develops an implementation-aware passivity framework for fast-sampled discrete-time nonlinear systems subject to quantized measurements, quantized actuation, and finite-register effects. All implementation nonlinearities are aggregated into a single structured input perturbation, which is propagated through the plant Lipschitz bound and a dissipation-type storage function.