Unable to resolve the name comm.AWGNChannel

Question

Ricardo López 2021-1-11

回答： Maadhav Akula 2021-1-24

Hello all,

I have recently upgraded matlab to the R2020b and for some reason it is not able to run the Gaussian noise signal comm.AWGNChannel.

channel = comm.AWGNChannel('NoiseMethod','Variance', ...
'VarianceSource','Input port');

Does anyone know how to fix this?

Thank you in advance,

Ricardo

Answer 1

Maadhav Akula 2021-1-24

Hi,

Try the following command:

which -all comm.AWGNChannel

This should return the location of the file of AWGNChannel.m

Also, try the following command to check whether you have the Communications Toolbox installed or not:

ver('comm')
license('test','communication_toolbox')

This will return the Communications Toolbox version and 1 if you have access to the Communications Toolbox.

Hope this helps!