Thread: frequency domain in system analysis

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

Originally Posted by allah's_slave

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

It depends on the problem.

RonL

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

Originally Posted by allah'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

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