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Differenbetween different transforms

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yalanand

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different transforms

Hi what is the difference between laplace and fourier and Z transform...When can we use them...on what basis we have to choose the analysis ?
 

Nikolai

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fourier is a special case of the laplace transform (when σ = 0).
in most cases of digital communication , fourier transform is used..

Laplace transform is mostly used in Control systems theory, although it has other applications too.

Z-transform basically deals with discrete sequences and used in digital filter design
(although fourier transform is also used in digital filter design).

you might get a more detailed analysis from the DSP section.
 

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