Interpolation is an important feature in today's digital oscilloscopes. The main purpose of a DSO is to analyze and view analog waveforms. To do this, the DSO samples a waveform at some finite sample rate, generating a vector of voltages with respect to time. Interpolation in Your DSO Peter J. Pupalaikis, Product Marketing Manager WaveMaster Oscilloscopes LeCroy Corporation Introduction Interpolation is an important feature in today's digital oscilloscopes. The main purpose of a DSO is to analyze and view analog waveforms. To do this, the DSO samples a waveform at some finite sample rate, generating a vector of voltages with respect to time. Since this vector represents a set of points (not the actual smooth analog waveform), it is often desirable to modify the acquired waveform by generating samples that are predicted between the actual acquired points. The generation of samples that occur in between actual waveform samples is called interpolation. When done properly, this results in a wavefor……