R&S SMJ100A, Руководство по эксплуатации

Страница: 432 / 874

Instrument Function
R&S
®
SMJ100A
416 Operating Manual 1403.7458.32 ─ 14
"Shortest File Wins"
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.
"User" 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.
"Least Common Multiple"
The output file duration is the least common multiple of all input file
durations.
Remote command:
[:SOURce<hw>]:BB:ARBitrary:MCARrier:TIME:MODE
on page 611
Signal Period
Sets the signal period in Signal Duration Mode "User". Shorter I/Q files are repeated
periodically, and only the first part of longer I/Q files is used.
Remote command:
[:SOURce<hw>]:BB:ARBitrary:MCARrier:TIME
on page 611
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 dif-
ferent 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 car-
rier signal will be 3 dB lower than the RMS power of the first carrier
signal.
Baseband Signal - Baseband Block