I have a signal which looks something like:

![enter image description here](https://i.stack.imgur.com/5vwMD.png)

The 12 main round peaks is what I'd like to keep. However, the peak detection algorithm I apply is picking up the in-between noisy peaks. Any strategies I could use to get rid of this noise?

I tried smoothing the signal, but the noisy peaks are still there.

Thanks