Affect of low sampling rate on frequency-time diagram in ECG signals

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FSB
FSB le 24 Sep 2018
Commenté : Adam le 24 Sep 2018
I have ECG signal data recorded with a low sampling rate (61 HZ approx). My focus is to use the time-frequency diagram for further analysis. Now I want to ask what affect does a low sampling rate has on a time frequency diagram (Scalogram)? Also the signal has harmonics (probably due to bluetooth transmission used).Will this also affect the Scalogram?
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Adam
Adam le 24 Sep 2018
It just means you won't be able to get any information above 30.5Hz (Nyquist frequency) in your data analysis.

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