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A simple and effective feedback structure for variable-Q filter design
Analog Integrated Circuits and Signal Processing ( IF 1.2 ) Pub Date : 2021-01-07 , DOI: 10.1007/s10470-020-01793-9
Arman Kheirati Roonizi , Hossein Pakniat

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.



中文翻译:

可变Q滤波器设计的简单有效反馈结构

本文提出了一种简单有效的反馈结构来实现可变Q带通滤波器。可以通过在反馈通道中使用积分加导数来设计有效的可变Q带通滤波器。在连续和离散时间系统中都显示了模型的稳定性。此外,我们证明了该模型确实可以实现所需的中心频率作为精确的滤波器。通过仿真证明了所提出的反馈结构的效率。

更新日期:2021-01-08
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