E210 Lecture Notes Dianguang Ma Spring 2010
EI210 Lecture Notes Dianguang Ma Spring 2010
Chapter 1 (Part Il) Signals and Systems
Chapter 1 (Part II) Signals and Systems
The Discrete-Time Unit Step Function 。Definition 1,n≥0 m=0.n<0
The Discrete-Time Unit Step Function • Definition 0, 0 1, 0 [ ] n n u n
The Discrete-Time Unit Step Function u[n] 1.099 n -4-3-2-1 01234
The Discrete-Time Unit Step Function
The Continuous-Time Unit Step Function ·Definition 1,t>0 u)=0,t<0
The Continuous-Time Unit Step Function • Definition 1, 0 ( ) 0, 0 t u t t