Removing cyclic noise from signal I'm using a sensor with output that looks like the following figure.


The cyclic noise is common to ask measurements made by the sensor. Is there a way to remove the noise without negatively effecting higher frequencies.

We have attempted using a Fourier transform and then zeroing the frequencies around 6 Hz in Matlab, but that was ineffective.
You must use notch-stop or band-stop filters.

There are different methods to implement them, But you could implement them easily using fdatool in MATLAB. After you designed the filter, filter your signal using filter function.