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DPO6000, MPO6000 Series Digital Fluorescent Oscilloscope Product Manual V1.3
24
Sine interpolation
Use mathematical processing to calculate the results in the actual sample interval. This
method bends the signal waveform to produce a more realistic common shape than
pure square waves and pulses. When the sampling rate is 3 to 5 times the system
bandwidth, sine interpolation is recommended. The following figure shows the com-
pletely different display effect after using this interpolation method.
Through the comparison of the acquired signal waveforms of the three interpolation
methods above, it can be clearly seen that the three interpolation methods, the sine in-
terpolation method, are relatively smooth to fit the signal waveform, and also reflect the
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