• In contrast, the term digital resolution refers to the density of the (digital) data points in the spectrum, which is a parameter controlled by the dwell time of the originally acquired time-domain data points (ignoring over-sampling for the sake of simplicity) and any points added to the end of the time-domain data (zero filling), or as part of special processing methods such as non-linear processing or when transforming non-uniform sampling (NUS) data.