Agilent Technologies NFA Series, Performance Verification And Calibration Manual

Page: 96 / 184

84 Chapter 2
Test Descriptions
Measurement Jitter
Equation 2-3
where n = number of samples,
∑
= sum, x = measured values
Using an example result of approximately 2.5, the standard deviation
Lin
can be
calculated as follows.
σ
n x
2
x
∑
⎝ ⎠
⎛ ⎞
2
–
∑
n n 1 –
( )
----------------------------------------- =
σ
= √
100*sum(value 1 to 100
2
) - (sum value 1 to 100)
2
/ 100(100-1)
=
√
100* 638.3963 - 63838.4147 / 9900
=
√
0.000123
= 0.011071
Lin