Notch or Bandstop filter and preparing data for it

I am new to matlab and signal processing methods, but i am trying to use its filter properties over a set of data I have. I have a collection of amplitude values obtained at different timestamps. When this is plotted, I get a waveform with several peaks that I can identify. I then perform calculations to derive the time between each consecutive peak and I want to eliminate the rates that are around the range of 48-52peaks per second.

What would be the correct way to go about processing this data step by step? Would a bandstop or notch filter be better if I want to eliminate those frequencies and not attenuate it simply? I am completely lost in the parameters required to feed into the filters for this. Please help...

Answer 1

[Star Strider]

It’s by definition a notch filter because the stopband is so narrow. Since you’re new to signal processing, you will likely find Remove the 60 Hz Hum from a Signal particularly informative. It discusses the design and performance of a filter to do something quite similar to what you want to do.