Preshoot
The measurement is taken on the second edge of the waveform if two edges exist. The algorithm finds the time interval from the middle time between the two edges until the second edge. The local maxima and minima are found in this interval. If only one edge is present in the waveform, the local maximum and minimum are found from the start of the waveform to the first edge.
If the edge is negative sloped, preshoot = 100 × (local maximum – voltage high) / voltage amplitude.
If the edge is positive sloped, preshoot = 100 × (voltage low – local minimum) / voltage amplitude.
Units
Percentage