Instrument Function
R&S
®
SMBV100A
152Operating Manual 1407.6062.32 ─ 08
5.3.3.4 Eye Diagram
The eye diagram displays synchronized and superimposed sections of either the inphase
or quadrature components of the signal.
The display width (eye length) is set at 2 symbols; several hundred curve segments are
superimposed. The time (in the range -/+ 1 symbol) is plotted on the X axis, and the
amplitude scaled to the peak envelope power (PEP) is plotted on the Y axis (minimum
scaled amplitude = -1; maximum scaled amplitude = +1). The beginning of recording is
synchronous to the symbol and chip clock pulse. The recording depth is 2kSamples.
This signal is picked off at the output of the baseband main module ("Impairment" function
block), i.e. contained in the displayed signal is:
●
impairment of the signal as defined by the user and the addition of noise.
5.3.3.5 CCDF Display
The Complementary Cumulative Distribution Function shows the probability with which
the output signal will exceed the average power.
The level over the average power is plotted from 0 to 20 dB on the X axis; the average
power (RMS) corresponds to the origin. The probability of exceeding the average power
is plotted between 0.0001% and 100% on the Y axis. The recording depth is 8kSamples.
This signal is picked off at the output of the baseband main module ("Impairment" function
block), i.e. contained in the displayed signal is:
●
impairment of the signal as defined by the user and the addition of noise.
Graphical Display - Graphics
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