Sebastian Dziedziewicz - Publications - Bridge of Knowledge

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Year 2024
  • Numerical Method for Stability Testing of Fractional Exponential Delay Systems
    Publication

    - Year 2024

    A numerical method for stability testing of fractional exponential systems including delays is presented in this contribution. We propose the numerical test of stability for a very general class of systems with a transfer function, which includes polynomials and exponentials of fractional powers of the Laplace variable s combined with delay terms. Such a system is unstable if any root of its characteristic equation, which usually...

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Year 2023
Year 2022
  • Efficient Fabry-Perot Open Resonator Analysis by the use of a Scattering Matrix Method
    Publication

    - Year 2022

    In this paper a comparative study of the computational efficiency of two modeling methods applied to the analysis of the plano- and double-concave Fabry-Perot open resonators is presented. In both numerical approaches, a scattering matrix method was applied, which allows splitting the analysis of the resonator into several sections, including the one with a spherical mirror, which requires the largest computing resources. Two modeling...

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  • Multipath Complex Root Tracing

    The problem of multipath root tracing is being addressed in this communication. The self-adaptive complex root tracing algorithm, which was previously utilized for the investigation of various propagation and radiation problems, is analyzed here for the cases when the traced characteristic bifurcates. A procedure of multiroute detection is proposed and demonstrated on the coaxially loaded cylindrical waveguide example.

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Year 2021
Year 2020
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Year 2018

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