How can I find the baseline of signal?

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Yuhan Yang
Yuhan Yang 2021-3-2
回答： Star Strider 2021-3-2
I have a signal like this. How to compute the baseline of the signal? I way trying to use medfilt1, but I can't get rid of the peaks.

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回答（1 个）

Star Strider
Star Strider 2021-3-2
See if the min function will do what you want.
If you want to plot a horizontal line indicating the minimum, and if ‘y’ is the signal you are plotting, one option is:
plot(xlim, [1 1]*min(y))
another option is:
yline(min(y))
.

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