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When simulating digital modulations in Matlab, it is useful to verify the simulated BER performance curves against theoretical BER curves.Matlab has an inbuilt visualization tool, ‘BERTOOL’, for this purpose.

Matlab’s BERTOOL supports 6 types of digital modulations over 3 types of channel for plotting theoretical BER. The six supported modulations are PSK,DPSK,OQPSK,PAM,QAM,FSK and the three channel types are : AWGN,Rayleigh,Rician. It also has options to set diversity order, channel coding, synchronization method and demodulation type(coherent/non-coherent).

A brief intro to the tool is given here. You might need to install communication toolbox for invoking this tool.

Invoke the BERTOOL GUI using the command (tested with R2012b)
>>bertool

bertool in Matlab

Set the desired configuration and click plot.

bertool in Matlab

You can export the data from BERTOOL to the workspace. After you have exported it to the workspace, you can plot it against your simulation curve for verification.

bertool in Matlab

For a detailed documentation: Matlab documentation on BERTOOL

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