信号与系统教学课件：3-1 Information and frequency component

1、Chapter 3 Signals in Frequency domain (CTFS,Signals and Systems,3.1 Information and frequency component 3.2 Definition and properties for CTFS 3.3 Frequency spectrum for periodic signals,Information in signals,Information is included in signals; Signal is changed with time; Different ways of change

2、means different information,3.1 Information and frequency component,Fundamental Period,Basic unit of information : Signal with basic change mode,3.1 Information and frequency component,Periodic signal with single frequency,Different frequency means different periodic Means different change mode with

3、 time Means different information,Basic unit of information : Single frequency signal,3.1 Information and frequency component,Frequency Information,Any signal can be represented by the combinations of its information component; Each information component is a single frequency signal with different s

4、trength,Information combinations in signals,3.1 Information and frequency component,The single frequency signal,The frequency value,The frequency component,3.1 Information and frequency component,Information combinations in signals,The frequency spectrum,3.1 Information and frequency component,The f

5、requency spectrum for periodic signals,Relation of frequency and period,3.2 Definition and properties for CTFS,The frequency spectrum for periodic signals must be discrete,The frequency spectrum for periodic signals,3.2 Definition and properties for CTFS,CTFS for periodic signals,Fourier series coefficient,Synthesis equation,Analysis equation,3.2 Definition and properties for CTFS,frequency component,Transform pair,frequency spectrum,magnitude spectrum,phase spectrum,CTFS for periodic signals,3.2 Definition and properties for CTFS,Transfor