# Oversampling ratio ( factor) calculation

I study GMSK modulator. In its simulation we use an oversampling ratio if we implement gaussian filter or oversample the input signal.

In my simulation I can test different value of the oversampling ratio;2, 4, 6 and so on... but honestly, I don’t see a different and no idea how to determine the best ratio for my simulation.

could you explain how you determine the oversampling rate? is there an equation to do that?

PS it is not given sampling/Nyquist frequencies, so it is impossible for me to compute its ratio to find the oversampling ratio

• well if you have no external constraints on sampling frequency, you can choose whatever works. You have identified exactly the thing that constrains your oversampling ratio, and excluded it, so there's nothing left. Commented May 16, 2022 at 9:44
• @MarcusMüller What characteristics can limit my choice? Commented May 16, 2022 at 10:48
• as said, mostly sampling rate, and as Dan explains, that's a system level design decision. Commented May 16, 2022 at 10:50