An essential feature of the magnitude function is that it can be approximated by two straight lines, one lying along the \(M = 1\) line and the other with a slope of -1, which intersect at \(\omega = ...An essential feature of the magnitude function is that it can be approximated by two straight lines, one lying along the \(M = 1\) line and the other with a slope of -1, which intersect at \(\omega = 1/\tau\). (This frequency is called the corner frequency.) The maximum departure of the actual curves from the asymptotic representation is a factor of 0.707 and occurs at the corner frequency.
Thus, the steady-state response to sinusoid of a certain frequency is a sinusoid at the same frequency, scaled by the magnitude of the frequency response function; the response includes a phase contri...Thus, the steady-state response to sinusoid of a certain frequency is a sinusoid at the same frequency, scaled by the magnitude of the frequency response function; the response includes a phase contribution from the frequency response function.
