_:n5677f8d8b8ba417f80854684345a5907xb3
<http://schema.org/text>
"Hello Kutru,\r\nI do not know exactly what were you expecting to find in your plots. The difference in your plots is only the noise you added. In the figures below you can see a zooming of both plots. Obviously, the only present frequency is that of 50Hz, being the second plot much more noisy than the first one (clean plot):\r\n\r\n\r\n&lt;&lt;/matlabcentral/answers/uploaded_files/34696/clean.png&gt;&gt;\r\n\r\n\r\n\r\n&lt;&lt;/matlabcentral/answers/uploaded_files/34697/noisy.png&gt;&gt;"
<https://kr.mathworks.com/matlabcentral/answers/231302-adding-phase-noise-in-simple-signal>