Attenuation in digital filter bank
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Hello, I have this bank of 3 digital filters, with an input signal of 150 Hz and 1 of amplitude, you know why the signal is reduced by 0.04 for the BandPass [250-2000 Hz] and by 1x10-4 for the BandPass [2000-20000 Hz]?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/754969/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/754974/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/754979/image.png)
2 个评论
Jonas
2021-9-30
Attenuation is normal. Do you want to know why it is exactly 0.04 and 10e-4 for those filters?
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