Boonton 4500B Peak Power Meter - Manual (Page 321)

Boonton 4500B RF Peak Power Analyzer
Application Notes 6-11
12. The processor calculates the output values according to the following
definitions:
a.) Pulse Width Interval between mesial points
b.) Risetime
See Step 11
c.) Falltime See Step 11
d.) Period
Cycle time between mesial points
e.) Pulse Repetition Reciprocal of Period
Frequency
f.) Duty Cycle Pulse Width / Period
g.) Off-time
(Period) - (Pulse Width)
h.) Peak Power
Maximum sample value (See Step 1)
i.) Pulse Power
Average power in the pulse (between the
mesial points)
j.) Overshoot (Peak Power) - (Top Amplitude)
k.) Average Power
See Step 13
l.) Top Amplitude
See Step 8
m.) Bottom Amplitude See Step 7
n.) Skew See Step 14
Average Power Over an Interval
13. The average power of the signal over a time interval is computed by:
a.) summing the sample powers in the interval
b.) dividing the sum by the number of samples
This process calculates Pulse Power, Average Power and the average power
between markers.
Since each sample represents the power in a finite time interval, the endpoints
are handled separately to avoid spreading the interval by one-half pixel at each
end of the interval (See Figure 6-7). For the interval in Figure 6-7, the average
power is given by: