Rohde & Schwarz ZNB20, Руководство пользователя

Страница: 516 / 1332

GUI Reference
R&S
®
ZNB/ZNBT
501 User Manual 1173.9163.02 ─ 38
5.12.6.1 Controls on the Trace Statistics Tab
The "Eval. Range..." button opens the "Evaluation Range" dialog (see Chap-
ter 5.12.6.2, "Evaluation Range Dialog" , on page 504).
Min/Max/Peak-Peak, Mean/Std Dev/RMS
The upper two softkeys in the "Trace Statistics" tab display or hide groups of statistical
results. The values are based on all response values of the trace in the selected evalu-
ation range ("Eval. Range...").
Suppose that the trace in the evaluation range contains n stimulus values x
i
and n cor-
responding response values y
i
(measurement points). The statistical values are
obtained as follows:
●
"Min" and "Max" are the largest and the smallest of all response values y
i
.
●
"Pk-Pk" is the peak-to-peak value and is equal to the difference "Max"–"Min"
●
"Mean" is the arithmetic mean value of all response values:



n
i
i
y
n
Mean
1
1
●
"Std Dev" is the standard deviation of all response values:
 
 
 
n
i
n
i
i i
y
n
y
n
Dev Std
1
2
1
)
1
(
1
. .
●
"RMS" is the root mean square (effective value) of all response values:
Trace Config Softtool