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how to implement a laplace transform

I am making some frequency response measurements using the frequency response function VI, but I need to 'correct' for my measurement equipment. So I have separately measured the response of my equipment and characterised it in the frequency domain, e.g. G(s) = 1/(1 + s.tau)  where tau is a time constant. (This is just a simple example of a low pass filter, to illustrate the point.) The question is, how do I incorporate this correction into Labview?

My measured data is in the form of an array of discrete frequencies, vs. an array of magnitudes and phases.

Do I need to 'manually' code up a discrete version of my transfer function and subtract that, or does labview have 'built in' ways to handle this, like matlab does (e.g. ss for a state space system, the time discretisation is abstracted away from the user).

Dave

 

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Hi oilyfingers,

 

There is a control design and simulation module available for labVIEW the help file can be found here. This explains in detail the functions available on this tool kit, the state space functions will be of particular use to you I believe this has all the functions you need.  If you would like any further assistance or more clarification on this matter then post back to this forum and I will be happy to help.

 

Regards

Matt Surridge

National Instruments
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