DPO6000, MPO6000 Series Digital Fluorescent Oscilloscope Product Manual V1.3
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and reconstruct accurate waveforms. The interpolation method is divided into sine in-
terpolation, linear interpolation and step interpolation.
Linear interpolation
Connect straight lines directly at adjacent points. This method is limited to reconstruct-
ing straight-edge signals, such as square waves. The sine interpolation method uses
curves to connect the sampling points, which is more versatile.
Step interpolation
Insert the value of the previous sampling point between adjacent samples. This interpo-
lation algorithm is the same as the normal actual sampling of the oscilloscope ADC.
The sample-and-hold method is used to interpolate data to improve the signal sampling
rate.
