Which of the following statements are true about DTFT and DFT ____
选项:
A:The DTFT spectrum is continuous and DFT spectrum is discrete.;
B:There is some certain relationship between DTFT and DFT of a same signal.;
C:DTFT can accurately represent the spectrum of the discrete-time signal,while DFT cannot accurately represent the spectrum of the discrete-time signal.;
D:DTFT of a signal is a continuous spectrum, while its DFT is a discrete spectrum, and there is no relationship between them.
发布时间:2024-04-12 10:52:07