![For the four-pole filter in Figure (b), determine the capacitance values required to produce a critical frequency of 2680 Hz if all the resistors in the RC low-pass circuits are 1.8 kOmega. For the four-pole filter in Figure (b), determine the capacitance values required to produce a critical frequency of 2680 Hz if all the resistors in the RC low-pass circuits are 1.8 kOmega.](https://holooly.com/wp-content/uploads/2021/02/11-1.png)
For the four-pole filter in Figure (b), determine the capacitance values required to produce a critical frequency of 2680 Hz if all the resistors in the RC low-pass circuits are 1.8 kOmega.
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Real-time estimation of respiratory rate from a photoplethysmogram using an adaptive lattice notch filter | BioMedical Engineering OnLine | Full Text
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