Simulating Fading, Adding Noise and Predistortions, and Impairing the Signal
R&S
®
SMW200A
422User Manual 1175.6632.02 ─ 30
6.2.3 AWGN Block
The "AWGN" block provides access to the settings for the AWGN generator, see
Chapter 6.2.4, "AWGN Settings", on page 422. The label in the AWGN block indicates
the AWGN mode that is activated. The quickest way to activate or deactivate the
AWGN generator is the "On/Off" switch in the AWGN block.
If option R&S SMW-K810 is installed, you can also access impulsive and phase
noise settings from the AWGN block you also access the settings, see Chapter 6.3,
"Generating Impulsive and Phase Noise", on page 432. You can activate one or more
noise generators. The label in the AWGN block changes to reflect the active noise gen-
erators, too. The "On/Off" switch in the AWGN block toggles the state of the noise gen-
erator that was previously active.
6.2.4 AWGN Settings
Access:
1. Option: R&S SMW-B9, enable one of the following:
a) "System Config > Fading/Baseband Config > Mode = Standard" with "Signal
Outputs = Analog Only".
b) "System Config > Fading/Baseband Config > Mode = Advanced".
2. Select "Block Diagram > AWGN".
The dialog contains the settings for noise level configuration and CW interfering
parameters.
If the instrument is configured to work in Advanced mode ("System Configuration >
Fading/Baseband Configuration > Mode > Advanced") and Coupled Mode is dis-
abled, the dialog consists of more than one side tabs, whereas the number of tabs
corresponds to the number of selected BB Signals (Tx Antennas). The tab name
displays the baseband the settings are related to and the mode the noise is gener-
ated at.
3. To activate the AWGN generator, select "Block Diagram > AWGN > AWGN > Gen-
eral > State > On"
In Advanced mode, a dedicated LED indicates the state of each stream.
Adding Noise to the Signal
To Next Page
Loading...