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Functional diagram of the elementary digital filter

Mathematical model of digital frequency-sampling filters with shiftable phase-frequency characteristic

Maxim V. Shakurskiy, Vladimir I. Volovach


The paper presents mathematical models of digital frequency-sampling filters with shiftable phase-frequency characteristic (PFC) and a generalized mathematical model taking into account the PFC shift introduced at the input. The conducted investigations made it possible to develop a class of narrow-band filters with the possibility of PFC shift and the real-time variation of instantaneous phase of the output signal.


digital filter; frequency-sampling method; phase-frequency characteristic; PFC; elementary digital filter; finite-impulse response

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