This paper proposes a simple and effective feedback structure to implement the variable-Q band-pass filter. An effective variable-Q band-pass filter can be designed by using integral-plus-derivative in the feedback pass. The stability of the model is shown in both continuous and discrete-time systems. Also, we demonstrate that the model could indeed achieve the desired center frequency as a precise filter. The efficiency of the proposed feedback structure is demonstrated using simulation.
A simple and effective feedback structure for variable-Q filter design / A. Kheirati Roonizi, H. Pakniat. - 107:2(2021 May), pp. 463-473. [10.1007/s10470-020-01793-9]
A simple and effective feedback structure for variable-Q filter design
A. Kheirati Roonizi
;
2021
Abstract
This paper proposes a simple and effective feedback structure to implement the variable-Q band-pass filter. An effective variable-Q band-pass filter can be designed by using integral-plus-derivative in the feedback pass. The stability of the model is shown in both continuous and discrete-time systems. Also, we demonstrate that the model could indeed achieve the desired center frequency as a precise filter. The efficiency of the proposed feedback structure is demonstrated using simulation.
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