3.0 Introduction Fourier transform plays a key role in analyzing and representing discrete-time signals and systems, but does not converge for all signals Continuous systems Laplace transform is a generalization of the fourier transform Discrete systems: Z-transform, generalization of ft, converges for a broader class of signals 2021/1/31 Zhongguo Liu_ Biomedical Engineering_shandong Univ3 2021/1/31 Zhongguo Liu_Biomedical Engineering_Shandong Univ. 3.0 Introduction ◆Fourier transform plays a key role in analyzing and representing discrete-time signals and systems, but does not converge for all signals. ◆Continuous systems: Laplace transform is a generalization of the Fourier transform. ◆Discrete systems : z-transform, generalization of FT, converges for a broader class of signals