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Digital Signal Processing http://ee.sjtu.edu.cn:8080/ Textbook ：

Digital Signal Processing http://ee.sjtu.edu.cn:8080/ Textbook ： DISCRETE-TIME SIGNAL PROCESSING (2nd Edition) Alan V. Oppenheim Reference for experiment ： 基于 MATLAB 的系统分析与设计 ------ 信号处理

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Digital Signal Processing http://ee.sjtu.edu.cn:8080/ Textbook ：

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  1. Digital Signal Processing http://ee.sjtu.edu.cn:8080/ Textbook： DISCRETE-TIME SIGNAL PROCESSING (2nd Edition) Alan V. Oppenheim Reference for experiment： 基于MATLAB的系统分析与设计------信号处理 楼顺天 西安电子科技大学出版社 Textbook in Chinese： 数字信号处理 刘兴钊 李力利 电子工业出版社 29 元

  2. Prof Wen Chen • 1. Website: wnt.sjtu.edu.cn • 2. Email: wenchen@sjtu.edu.cn • 3. Phone: 34204585 • 5. Office: #1-520, Dianxin Building, SJTU • 6. TAs: ***

  3. Marking 1. Assignment 10pt, one after each chapter. 3. Experiment10分，Using Matlab。 7. Mid-term25pt。 8. Final 50pt。 9. Additional feeling 5pt.

  4. CHAPTER 1 INTRODUCTION 1.what is digital signal 2.what is digital signal processing 3.character of digital signal processing 4.Application of digital signal processing

  5. x(t) x[n] 1.what is digital signal

  6. analog signals digital signals Example: the storage of voice signal in different materials vocal cord shakes air pressure changes and spreads Recorded using analog signals the voltage of microphone changes Recorded using digital signals Recorded according to the intensity of magnetism (1) magnetic tape： Recorded according to the undulant channels (2) ethane-resin disc： Recording 0 or 1 according to the direction in which the mote is magnetized (3) disk： (4) CD： Recording 0 or 1 according to the accidented surface

  7. 2. what is digital signal processing Continuous-time low pass filter Discrete-time low pass filter

  8. 2D high pass 2D low pass Digital signal processing: additions, multiplications, delaying

  9. Realization method (A) software flexible; slowly (B) hardware Fast,small; no flexibility (C)hardware and software programmable DSP chip fast，flexible

  10. Example of hardware and software realization

  11. 3.character of digital signal processing (1)higher precision (2) higher flexibility (3) more process abilities (4)higher reliability (programmable) (5)cheaper

  12. The advantage of digital TV:

  13. 4.Application of digital signal processing (A) communications (B) entertainment (C) medicine (D) military (E) exploration (F) archaeology

  14. Digital products: DAT（digital tape recorder） CD MD（mini-dick） MP3 VCD DVD Digital camera Digital vidicon Digital phone Digital scanner PDA

  15. Digital TV Digital movie Digital broadcasting station

  16. Digital communication

  17. Digital network： Internet; LAN in offices bluetooth infobahn

  18. Virtual Reality Technology

  19. electronic paper:

  20. This course includes 3 major parts • basis of discrete-time signal and systems • (2) structure and designing of filter • (3) the discrete Fourier transform and FFT

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