Fitting with integral functions

Hello

I try to fit the data with full functions.  It is impossible to obtain analytical solutions of the integrations.

Integration is integral [(T - abs [x]) f (x) dx, T, - T]

Here, f (x) is one of the functions of autocorrelation for different model systems.

Thank you

Doogie

Hi Doogie,

We certainly have the integration and curve build VIs in LabVIEW. For example, you can find several kinds of system integrators in the mathematics > integration & differentiation palette. Also, if you use our design Simulation tools by & control, that built the integration as well. However, because you are dealing with an equation as opposed to sampled signals, I'd start by programming your equation in LabVIEW. Take a look at this forum thread that discusses this, and examples of code.

Once you have programmed the equation and can generate an array of points for your stove, you might try to enter a function of integration as the "Integrate x (t) .vi" and then use a function as the "general polynomial Fit.vi" curve to generate an equation fitting for him. I would try getting started in this way. Please let me know if I address not the functionality that you are interested in.

Best regards

Tags: NI Software

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