Szukana fraza: [Abstract = "It is impossible to describe such a phenomenon by means of one complex number. A periodically time\-varying one\-port network working in a steady\-state regime can be described with a circular parametric operator. Within the domain of discrete time, such an operator takes the form of a matrix with real\-valued entries. The circular parametric operator can be transformed into the frequency domain using a two\-dimensional DFT. This description makes it possible to quantitatively assess LPTV system input and output harmonics aliasing."]

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