The average value is defined as that level where the pulse area above the average is equal to area below average
between pulses. If the pulses are evened off in such a way as to fill in the area between pulses, the level obtained is the
average value, as shown in Figure 1 where the shaded area of the pulse is used to fill in the area between pulses. The area
of the pulse is the pulse width multiplied by the peak pulse power. The average area is equal to the average value of power
multiplied by the pulse period.