I have a signal and from 'standard information' I know the predominant frequency is at $1\textrm{ Hz}$ and then there should be three harmonics at lower amplitudes. My signal however has a lower amplitude at $1\textrm{ Hz}$, higher at the first harmonic and then several harmonics, more than what should be present.
I am trying to design a comb filter to rectify this but I am not sure where to start. Any advice from anyone who has some experience with this filter would be great.
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