STEADY STATE DELAY AND APERIODIC SIGNALS 



229 



from it by multiples of tt. In so far as any one purely sinusoidal component 

 of the disturbance is concerned, values of phase determined by those curves 

 which differ by an even multiple of tt would be indistinguishable. Those 

 differing by an odd multiple would represent a reversal of sign. Let us 



e+KTT^ 



Fig. 3 — Graphical representation of the time of maximum absolute value 



now select that curve for which the tangent at coi intersects the phase axis 

 nearest the origin, and call it + kir. Since, for the case drawn. 



DC\ < 



r 



k = 2n. 



