Boonton 4500B Peak Power Meter Manual de usuario descargar pdf (Pagina 321)

100

101

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:

1 2 ... 316 317 318 319 320 321 322 323 324 325 326 ... 371 372

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Boonton 4500B Peak Power Meter Manual de usuario Pagina 321

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