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讨论了用开关电容滤波器(SCF)在宽频率范围内实现跟踪滤波的可行性。以一个 SCF 二阶节为例进行了理论分析和实验验证,在20Hz～20kHz 的频率范围内实现了自动跟踪滤波。
The feasibility of using tracking switched filter (SCF) to achieve tracking filtering over a wide frequency range is discussed. Taking a SCF second-order section as an example, theoretical analysis and experimental verification are carried out to realize automatic tracking filtering in the frequency range of 20Hz ~ 20kHz.