can any one till me why to use frequency domain in system analysis and not the time domain?

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- Apr 13th 2008, 04:57 PMallah's_slavefrequency domain in system analysis
can any one till me why to use frequency domain in system analysis and not the time domain?

- Apr 13th 2008, 08:38 PMCaptainBlack
- Apr 15th 2008, 11:49 AMallah's_slave
ok

but in control engineering we r always using frequency domain in block reduction and concatenation

they say that it is more easy since it transforms differential and integral equations into algebric equation and because it makes block concatenation extremely easy

but are those the only reasons??????

i hate getting used to something without understanding it very well - Apr 15th 2008, 02:22 PMCaptainBlack
My experience is that Laplace domain is more common, but then that is only

another way of writing the integro-differential operator that the block

represenrs, and also by a simple change of variable converts to the

frequency domain.

But all this assumes that we have linear operators.

RonL