R&S WinIQSIM2 Software Manual - Rohde & Schwarz

R&S ® WinIQSIM2
Graphical User Interface
Baseband Block
adjust the signal duration to the carrier which is subsequently demodulated (in this case,
the other carriers are for interfering the signal only). These problems do not arise with
signals of the same standard (e.g. 3GPP).
The following modes are available:
"Longest File
Wins"
"Shortest File
Wins"
"User"
The resulting signal period is defined by the longest I/Q file in the carrier
table. Shorter I/Q files are periodically repeated.
The resulting signal period is defined by the shortest I/Q file in the carrier
table. Only the first part of longer I/Q files is used.
The signal period can be set by the user in the "Signal Period" field.
Shorter I/Q files are repeated periodically, and only the first part of longer
I/Q files is used.
Remote command:
​[:​SOURce]:​BB:​ARBitrary:​MCARrier:​TIME:​MODE​ on page 224
Power Reference
Defines the way the individual carriers in a composed multi carrier signal are leveled. The
difference between the provided modes is especially important if signals with different
crest factors are composed together into a multi carrier signal.
"RMS"
The individual carriers are leveled based on their RMS power and the
configured "Carrier Gain".
Example:
A multi carrier signal is composed from two waveform files.
First carrier "Gain" = 0 dB
Second carrier "Gain" = -3 dB
In the resulting multi carrier signal, the RMS power of the second carrier
signal will be 3 dB lower than the RMS power of the first carrier signal.
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