Remove drift from signal

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thestargazer 2016-7-18

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https://ww2.mathworks.cn/matlabcentral/answers/296166-remove-drift-from-signal

回答： Star Strider 2016-7-19

How do I remove the drift from this signal? I want the "flat" lines in beginning and the end to be at the same level.

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Star Strider 2016-7-18

There seems to be an integrated square-wave pulse in the centre half of the data. What are your data and how are you acquiring and initially processing them?

thestargazer 2016-7-19

编辑：thestargazer 2016-7-19

Image shows what I meant with baseline. Baseline 1 and Baseline 2 are suppose to be at same level, but I had a drift in my measurement (signal = intensity). I want to remove the drift without distorting (changing) the amplitude of my bump.

What I am interested of here is the amplitude of this "bump" and the response time.

Many thanks!

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