5
votes
Accepted
Analysis of two audio signal by autocorrelation
The "MCU" plot looks like there was a DC component in the signal, that ran through the autocorrelation function. The triangle is typical for this. Try highpass filtering before the analysis.
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- 1,734
3
votes
Accepted
How to choose correctly oversampling ratio?
The referenced post does not imply that 8 samples per symbol are required, that is only what was used in order to show the extended spectrum as copied below:
What I have also included in this copy of ...
- 37k
2
votes
Down sampling an EEG signal
Merely downsampling will result in a loss of information, unless you know the data of interest lives in a particular frequency band which you can filter down to. To determine that, you should look at ...
- 463
1
vote
IMU data using ble protocol is in a weird format
It's base64 encoded. The string
eyJBWCI6MC42OTksIkFZIjowLjY2NiwiQVoiOjAuMjIyLCJHWCI6MTYuMjk2LCJHWSI6OS44ODcsIkdaIjotMTMuODU1fQ==
decodes to
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- 181
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