Revision as of 20:52, 18 July 2008 by Mbarga (Talk)

The Fourier transform of X(jw) of a continuous-time signal x(t) is periodic

MAY BE: X(jw) is periodic only if x(t) is periodic


The Fourier transform of X(ejw) of a continuous-time signal x[n] is periodic

YES: X(ejw) is always periodic with period 2pi


If the FT of X(ejw) of a discrete-time signal x[n] is given as: X(ejw) = 3 + 3cos(3w), then the signal x[n] is periodic

MAY BE:


If the FT of X(jw) of a continuous-time signal x(t) consists of only impulses, then x(t) is periodic

MAY BE: e^jw0n has a FT that is an impulse


Lets denote X(jw) the FT of a continuous-time non-zero signal x(t). If x(t) is an odd signal, then

YES:

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