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Can linear convolution technique be applied to discrete linear shift variant systems?

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abhigopal

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Hi,
I was wondering whether the linear convolution technique can be applietd to discrete linear shift variant systems?? From what I have understood, if the signal is time /shift varying, then for applying convolution, I might have to use circular convolution as a result of foldback. Anyone has any clue?
 

Re: convolution??

see this link it will help you

**broken link removed**
 

convolution??

Convolution is applicable to linear shift invariant systems only.
 

Re: convolution??

circular convolution has not physical meaning and infact is only a mathematic definition and has not important application . if you want to compute convolution of any two signals in fact you should compute linear convolution , whether their be discrete linear shift variant systems or not.
 

Re: convolution??

well, circuar convolution has no application?

this sounds strange,
circular convolution normally comes into action at times when liner convolution cant be done easily enough, eg
the case where the input sequence is very very large as compared to the impulse response of the system, this in itself is an application of circular convolution
 

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