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ny finite interval。each of discontinuities must be finite Example of continuoustime FTExample Example Example Example Example Duality property The Fourier transform for periodic signalsExample T=4T1Example Example Properties of the continuoustime Fourier transform Linearity Time Shifting Conjugation and Conjugate Symmetry Differentiation and Integration Time and Frequency Scaling Duality Parseval’s Relation Linearity Time Shiftingvtime shift don’t change the magnitude of Fourier transform vtime shift is to introduce into a phase shiftExample D