Generating and plotting PAM4 signal.

2017 3 6
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更新时间：2018 1 7
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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?

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回答（1 个）

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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.

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