Integrating velocity data with cumtrapz()

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Fabian Gock on 19 Jun 2018

Answered: Fabian Gockon 19 Jun 2018

velocity_vector.mat

Hi,

I have a quite long vector with the longitudinal velocity data of a car. As it only drives forward, there are no negative values. However, when I integrate the vector using cumtrapz() the calculated data which are supposed to be the traveled distance, are also decreasing and even becoming negative.

Used Timestamps for cumtrapz are 0:0.01:59.53 The velocity vector is attached.

Thanks in advance! -Fabian

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Adam on 19 Jun 2018

Seems to work fine for me:

                              x = 0:0.01:59.53;
                             
                              Q = cumtrapz( x, chassis_velocity_longitudinal );
                             
                              figure; plot( x, Q )

Answers (1)

Fabian Gock on 19 Jun 2018

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//www.tianjin-qmedu.com/matlabcentral/answers/406363-integrating-velocity-data-with-cumtrapz#answer_325287

Oh god, I accidentally switched time and velocity.. Sorry for this embarrassing question and thanks for the quick help!

Kind regards -Fabian

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