I have a list of collected data points that I need to take a DFT of, however with the problem that about one quarter of the data points in the middle are missing, and so even though the existing data points are evenly spaced their is still a large time gap that needs to be accounted for. I looked up some things on a variable sampling rate DFT, but it was first of all over my head and secondly I am not sure if it is applicable. My question then is how would I account for that time gap in my calculation. It would be best to have everything explained in as close to laymen's terms as possible as I am out of my depth in this.
Thank you for any help.