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difference bteween laplace transform and z transform
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sayurabh



Joined: 11 Apr 2007
Posts: 93
Post05 Jun 2009 14:05   

difference bteween laplace transform and z transform
what is the difference between laplace transform and z transform plz explain
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engr_najam



Joined: 10 Aug 2006
Posts: 136
Helped: 5
Post05 Jun 2009 16:51   

difference bteween laplace transform and z transform
the difference is the "S" and "Z" parameters.
S used for analog computation while Z for digital processing.
basically Z is the digital approximation of the analog frequency domain signal.
Z=exp(sT)
where T is the sampling time.
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pngzhi



Joined: 20 Jan 2008
Posts: 112
Helped: 7
Post15 Jun 2009 16:13   

Re: difference bteween laplace transform and z transform
You must use z transform for discrete time signals and laplce transform for continous signals.
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