OPTICOM OPERA - V 3.5 User Manual page 108

C H A P T E R 5 : W I D E
Model Output Variables and ODG
The screen shot in Figure 5.24 shows the Model Output Variables (MOVs) as
they are defined by BS.1387. For a detailed explanation of these please refer to
the ITU-R recommendation in the Appendix of this manual. The results are
shown framewise and are averaged since the beginning of the measurement.
This diagram contains several bars, each having a different meaning, scaling and
unit. The unit - if available - as well as the current value are shown on top of the
bars. The percent scale on the left side of the diagram is for orientation merely.
The first 11 bars (AvgBwRef .. NLoudB) represent the MOVs according to
BS.1387.
Table 5.4 may help relating the OPERA™ names to the according names of
the ITU recommendation.
Figure 5.24: PEAQ Basic Model Output Variables (MOVs) and the ODG
OPERA™ name
AvgBwRef
AvgBwTst
NMRtotB
ADB
MFPD
EHS
RDF
WModDif1B
AModDif1B
AModDif2B
NLoudB
Table 5.4: PEAQ Model Output Variables with respect to BS.1387 definitions
Objective Difference Grade (ODG)
The last two bars in the diagram shown in Figure 5.24 are the Distortion
Index (DI) and the final Objective Difference Grade (ODG). The "BV" in the
brackets indicates that this value is a result of the Basic Version of the PEAQ
B A N D A U D I O Q U A L I T Y
BS.1387 name
BandwidthRef
B
BandwidthTest
B
Total NMR
B
ADB
B
MFPD
B
EHS
B
RelDistFrames
B
WinModDiff
B
AvgModDiff1
B
AvgModDiff2
B
RmsNoiseLoud
B
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T E S T I N G