1, and the basic concepts and classification of signals and systems account for 5 points.
2. Time domain analysis of continuous-time system accounts for 5 points.
3. Laplace analysis of continuous-time signals shows that the system function of continuous-time system accounts for 25 points.
4. The Z-transform analysis method of discrete-time system shows that the system function of discrete-time system accounts for 15.
5, discrete time series Fourier transform and Fourier series accounted for 30 points.