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lucy wrote:
>
>
> Hi all,
>
> I am looking for such a tool in Matlab that can use Graphic User
> Interface to help me explore and understand the relation between
> position of the poles and the response itself?
>
> For example, for function f(t), the Fourier Transform F(w) can be
> deemed as complex function F(z) when we change "omega" into
> variable
> "z" and I want to examine how does the distance from the poles to
> real
> axis, the distance from the poles to imaginary axis, and the
> distance
> from the poles to the origin affect the behavior of f(t)?
>
> Any general rules about these poles?
>
> Thanks a lot!
>
>
I would use the MatLab tool 'SISOtool', you can put in a transfer
function and it spits out the root locus, bode plot, and step
response. You can just drag and click the poles/zeros and it changes
the other figures in real-time. Also you can discretize the system,
and see what happens. The only thing is that I think its part of the
Control Toolbox.
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