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How I can produce the integration of digital signal data without knowing the function?

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Hello all,
I have 512 acceleration data points. I want to integrate the data points to get the velocity and then the displacement data points by using Trapezium and Sympson's rules.
Example of my data points: x = [0 0.002 0.0039 0.0059 0.0078 0.0098 0.0117]; time(s) y = [-0.5570 0.1310 0.4010 0.0722 -0.5210 -0.8090 -0.7230]; acceleration (m/s2)
The problems happened when I looked around MATLAB code needs a function. By I dont.
Please advice.
Thank you for your time.
Regards, SMY

Akzeptierte Antwort

Star Strider
Star Strider am 3 Jun. 2016
Use the cumtrapz function with your vector. It does not need a function.
  15 Kommentare
Star Strider
Star Strider am 6 Jun. 2016
Congratulations!
Thank you for the links. I will look at them.
As always, my pleasure!
farzad
farzad am 16 Apr. 2020
dear Star, how do we check that we have not eliminated any energy from the signal by filtering it ? and is CWT the best option to filter ?

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