Chapter 5
299
Measurement Definition
Parametric Sweep Measurement Definitions
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Signal[ ]” are converted to 1 and 0 respectively. The obtained data is called
“Normalized Squeezed Noise[ ].”
8. “OTRC SNR[ ]” and “Squeezed SNR[ ]” Calculation, and “OTRC (Unsqueezed
OTRC)” and “Squeezed OTRC” Calculation
a. Calculate “OTRC SNR[ ]” profile from “OTRC Signal[ ]” and “OTRC Noise[ ].”
If OTRCSignal’[ ] > OTRC Noise’ [ ]
and OTRC Noise’[ ] + Ng
≠
0
and Ng + Ni
≠
0, then
OTRC SNR[ ] =
Else,
OTRC SNR[ ] = 0
where,
OTRCSignal’[ ] =
OTRCNoise’[ ] =
Ng: Gaussian noise constant (user-defined)
Ni: Interference constant (user-defined)
SNg: Gaussian noise of “OTRC Signal[ ]” profile (see “Gaussian Noise Level
Calculation Method” on page 302)
NNg: Gaussian noise of “OTRC Noise[ ]” profile (see “Gaussian Noise Level
Calculation Method” on page 302)
addNoise: 1 or 0 (user-defined)
b. Calculate “Squeezed SNR[ ]” profile from “Squeezed Signal[ ]” and “Squeezed
Noise[ ].”
If Squeezed Signal’[ ] > Squeezed Noise’ [ ]
and Squeezed Noise’[ ] + Ng
≠
0
and Ng + Ni
≠
0, then
Squeezed SNR[ ] =
Else,
Squeezed SNR[ ] = 0
where,
Squeezed Signal’[ ] =
Squeezed Noise’[ ] =
Ng: Gaussian noise constant (user-defined)
Ni: Interference constant (user-defined)
SNg: Gaussian noise of “Squeezed Signal[ ]” profile (see “Gaussian Noise Level
Calculation Method” on page 302)
NNg: Gaussian noise of “Squeezed Noise[ ]” profile (see “Gaussian Noise Level
Calculation Method” on page 302)
addNoise: 1 or 0 (user-defined)
c. Calculate “OTRC (Unsqueezed OTRC)” value from “OTRC SNR[ ]” profile (see
Figure 5-50).
10
OTRCSignal
′[ ]
2
addNoise
SNg
2
×
+
OTRCNoise
′[ ]
Ni
×
(
)
2
NNg
Ng
×
(
)
2
+
----------------------------------------------------------------------------------------------------
log
×
OTRCSignal
[ ]
2
SNg
2
Ð
OTRCNoise
[ ]
2
NNg
Ð
2
10
SqueezedSignal
′[ ]
2
addNoise
SNg
2
×
+
SqueezedNoise
′[ ]
Ni
×
(
)
2
NNg
Ng
×
(
)
2
+
-------------------------------------------------------------------------------------------------------------
log
×
SqueezedSignal
[ ]
2
SNg
2
Ð
SqueezedNoise
[ ]
2
NNg
Ð
2
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