How can change the time domain data into length domain data?

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Cheng Kang
Cheng Kang 2016-1-25
评论： Star Strider 2016-1-26
Now I have a set of acceleration data in time-domain, the interval time (2s) and the speed (5 mm/s) are known. I want to ask, How can I change the acceleration data(time domain) into acceleration data (length-domain).
thanks for the helping. Regards.

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Star Strider
Star Strider 2016-1-25
As best I can understand, you want acceleration in terms of distance. I would use two cumtrapz integrations to get distance from acceleration:
dx2dt2 = 0:0.01:1; % Acceleration Vector
x = cumtrapz(cumtrapz(dx2dt2)); % Distance Vector
figure(1)
plot(x, dx2dt2)
grid
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Cheng Kang
Cheng Kang 2016-1-26
Thanks for the answer. I understand it now. :D I wish you have a great day.

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