Rigol DSA1000 Series - Page 89

Front Panel Key Reference RIGOL
User’s Guide for DSA1000 Series
2-35
2.3.1.5 RMS Avg
Calculates the data from the sampling data segment with mean square root operation
(see equation below) and displays the result as a pixel. In this type, noise can be
rejected and weak signals can be clearly observed.
∑
=
×=
N
iRMS
v
N
V
1i
2
1
(Equation 2-8)
Where
RMS
V
= RMS value of voltage, in V
N
= number of samples assigned for every pixel
i
v
= envelop of the samples, in V
The reference resistance
R
can be used for calculating the power:
R
v
P
RMS
2
=
2.3.1.6 Voltage Avg
Averages all the data from the sampling segment (see equation below) and displays
the result as a pixel.
∑
=
×=
N
iAV
v
N
V
1i
1
(Equation 2-9)
Where
AV
V
= average of voltage, in V
N
= number of samples assigned for every pixel
i
v
= envelop of the samples, in V