4.1 Representation of Aperiodic Signals :The Continuous-Time Fourier Transform

6.1 The Magnitude-Phase Representation （ 幅度-相位） of the Fourier Transform

Let be a band-limited signal with then is uniquely determined by its samples if where

9.1 The Laplace Transform 1. The relationship 2. Region of Convergence（收敛域）

广东海洋大学：电子工程系《随机信号处理》课程教学大纲

3.1 3.13 3.15 3.34 3.35

6.23 Shown in Figure 6.23 is for a lowpass filter. Determine and sketch the impulse response of the filter for each of the following phase characteristics:

1. is absolutely summable, 2. has finite energy

1. Continuous-time system 2. Discrete-time system

2.1 Discrete-time LTI Systems : The Convolution Sum （卷积和） 2.1.1 The Representation of Discrete-Time Signals in Terms of impulses