1)so you mean that step is ONLY good for finding response and stability of system and not for any other.is it right ?
(content in my book)Using impulse signal, we can find complete frequency response of system
so what ,if it contain many frequencies ?In general, a step function is a worst-case test input to a closed-loop control system since a step includes many frequencies as shown by its Fourier expansion
Hi,so what ,if it contain many frequencies ?
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