I have a non uniform sampling frequency signal and I have to convert it in a constant sampling frequency. I tried to interpolate it with an Hermite spline interpolation but it make a lot of wrong peaks, like in the figure:
For example at
14887433 there is a peak too big.
A cubic (4 point) interpolation is too sharp for me.
Which method can I use to resampling this signal? Is there a way to filter a not constant sampled signal in order to use a sinc or a similar window?