Orłowski, Przemysław2023-06-022023-06-022003Orłowski P (2003).: An introduction to Svd-Dft frequency analysis for time-varying systems. In: Proc. of 9th IEEE Internat. Conf. MMAR 2003. Międzyzdroje 2000, Poland. pp. 455-460. https://hdl.handle.net/20.500.12539/1777https://hdl.handle.net/20.500.12539/1777The paper develops tools and methods for linear time-varying, discrete-time sys-tems analysis. It consists of theoretical background, definitions and numerical algorithms for frequency characteristics approximation. The main method is based on Singular Value Decomposition SVD, Discrete Fourier Transform DFT and power density spectrum proper-ties. A few illustrative numerical examples are included. Three different models have been analysed: oscillatory element, low pass filter and variable structure system. For better evaluation, results for presented method are compared with classical Bode characteristics.enUznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polskadiscrete-time systemstime-varying systemsnon-stationary systemsDyscyplina::Nauki inżynieryjno-techniczneconferenceObject