Chapter 4 Fourier transform 94.1 Representation of Aperiodic Signals: The Continuous-Time fourier Transform T-T/2T0 T T/2 T t a, Tysinckko,r) Tar=2T sinc(oT)2 Chapter 4 Fourier Transform §4.1 Representation of Aperiodic Signals : The Continuous-Time Fourier Transform 1 x(t)  -T -T/2 –T1 0 T1 T/2 T t  ( ) 0 1 1 sin 2 c k T T T ak =  ( ) 0 1 1 2 sin    k Tak T c T = =