How to use pwelch correctly for signal processing
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Hi,
I would appreciate if someone can guide me the right approach to use pwelch of the signal I have.
My signal is sampled at 3051Hz.
It has base frequency at ~1.5Hz.
And also another fequency around tens of Hertz (not sure exactly).
I use the pwelch with it's default values but I cannot see the 1.5Hz very good.
Do I need to use other values than the default? What should they be?
I'm attaching my signal.
My final goal is to design a high pass filter that would reveal these frequencies.
Thanks in advance! Omri
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