Generating and plotting PAM4 signal.

I'm trying to plot a PAM4 signal. I've generated the signal as:

data = randi([0 1],400,1);
hModulator = comm.PAMModulator(4,'BitInput',true);
modData = step(hModulator, data);

Now, I want to plot the 'modData' to obtain the waveform. I'm getting error while trying to use 'modData' and 'data' as variables for the plot() function. How can I obtain the PAM4 waveform plot?

Answer 1

[Harshavardhan Kallam]

Hello, If you run the above code and check the length of data and modData, you will see both are of different length.

Try plot(modData, Data(1:200),1)); I hope this will work

Thank You.