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Re: Vector integration - accelerometer data processing
Posted:
Dec 12, 2012 1:54 PM
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On Thursday, December 13, 2012 3:32:32 AM UTC+13, Steven_Lord wrote:
> "Jun " <wangjun_7@163.com> wrote in message
>
> news:ka8j2u$q05$1@newscl01ah.mathworks.com...
>
> > John Lukesh <jlukesh@deltanet.com> wrote in message
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> > <3AC566B5.F7239A4C@deltanet.com>...
>
> >> Hi,
>
> >>
>
> >> I think you should look at MATLAB?s ode (ordinary differential equations)
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> >> functions, function ode45 for example. You should be able to set up your
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> >> integration of accelerometer data problem as a set of first order
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> >> differential equations and use one of the ode functions to solve for
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> >> velocity and position. Go to help/function/ode45 as a start.
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> >>
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> >> Regards, John Lukesh
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> >>
>
> >> Sebastien Moindrot wrote:
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> >>
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> >> > Hi there,
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> >> >
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> >> > I'm looking for a function to help me to process the output from an
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> >> > accelerometer to obtain velocity and Position. The data are
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> >> > acceleration measured every 0.1s. If such a function is available
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> >> > could please tell me which one it is or if you have met such a problem
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> >> > in the past.
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> >> > Thanks for your help.
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> >> >
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> >> > Sebastien
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> >>
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> > Dear John,
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> >
>
> > Can you tell me your new email address please?
>
>
>
> Considering that John's last posting was over eight years ago (according to
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> MATLAB Central) if you want to ask a question you should probably post it to
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> the newsgroup rather than trying to email him. [Please do NOT email it to me
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> directly either; post to the newsgroup so that everyone can read it and
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> perhaps offer suggestions.]
>
>
>
> That being said, ODE45 or CUMTRAPZ would be good first steps in integrating
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> accelerometer data; use ODE45 if you have a function you've fit to the data
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> that fits well/matches the theory behind your experiment, CUMTRAPZ if you
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> have just the data itself.
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>
>
> --
>
> Steve Lord
>
> slord@mathworks.com
>
> To contact Technical Support use the Contact Us link on
>
> http://www.mathworks.com
Furthermore, this topic has been discussed many times before in this forum and various methods have been suggested. Use the search facility to find them.
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