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Built-in Signal Processing
Filter a Noisy Signal
Use lowpass filtering to remove noise from a signal.
In[1]:=
X
With[{data = Table[Sin[i^2 + i] + RandomReal[{-.2, .3}], {i, 0, Pi, 0.003}]}, Manipulate[ GraphicsColumn[ ListLinePlot /@ {data, LowpassFilter[data, \[Omega], 31]}], {{\[Omega], 1}, .1, Pi}]]
Out[1]=
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