香港城市大学：信号分析（PPT课件讲稿）Signal Analysis

Signal Analysis Lecturer: Dr. Peter Tsang Room:G6505 Phone: 27887763 E-mail: eewmtsan@cityu.edu.hk Website: www.ee.cityu.edu.hk/-csl/sigana/ Files: SIG01.ppt, SIG02.ppt, SIG03.ppt, SIG04.ppt Restrict access to students taking this course

Lecturer: Dr. Peter Tsang Room: G6505 Phone: 27887763 E-mail: eewmtsan@cityu.edu.hk Website: www.ee.cityu.edu.hk/~csl/sigana/ Files: SIG01.ppt, SIG02.ppt, SIG03.ppt, SIG04.ppt Restrict access to students taking this course

sigmal AMalysis Suggested reference books 1. M.L. Meade and c.r. Dillon, " Signals and Systems'", van Nostrand Reinhold(UK N Levan, "Systems and Signals,, Optimization Software, Inc 3.FR. Connor,“ Signals”, Edward arnold 4. A. Oppenheim, "Digital Signal Processing ", Prentice Hall. Note: Students are encouraged to select reference books in the library Supporting reference

Suggested reference books 1. M.L. Meade and C.R. Dillon, “Signals and Systems”, Van Nostrand Reinhold (UK). 2. N.Levan, “Systems and Signals”, Optimization Software, Inc. 3. F.R. Connor, “Signals”, Edward Arnold. 4 * . A. Oppenheim, “Digital Signal Processing”, Prentice Hall. Note: Students are encouraged to select reference books in the library. ⚫ * Supporting reference

sigmal AMalysis Course outline Week 2-4: Lecture Week 6: Test Week 7-10: Lecture Week 11 Test Scores Tests 30%(15% for each test) Exam: 70%o

Course outline ⚫ Week 2-4 : Lecture ⚫ Week 6 : Test ⚫ Week 7-10 : Lecture ⚫ Week 11 : Test Scores Tests : 30% (15% for each test) Exam : 70%

sigmal AMalysis Tutorials Group o1 Friday Weeks 23,4,7.8,9 Group 02: Monday Weeks :34,5,7,8,9 Group 03: Thursday Weeks:2,3,4,7,8,9

Tutorials ⚫ Group 01 : Friday Weeks : 2,3,4,7,8,9 ⚫ Group 02 : Monday Weeks : 3,4,5,7,8,9 ⚫ Group 03 : Thursday Weeks : 2,3,4,7,8,9

她 AMalysis Course outline 1. Time Signal representation. 2. Continuous signals 3. Fourier, Laplace and z Transform 4. Interaction of signals and systems 5. Sampling Theorem. 6. Digital Signals. 7. Fundamentals of Digital System. 8. Interaction of digital signals and systems

Course outline 1. Time Signal Representation. 2. Continuous signals. 3. Fourier, Laplace and z Transform. 4. Interaction of signals and systems. 5. Sampling Theorem. 6. Digital Signals. 7. Fundamentals of Digital System. 8. Interaction of digital signals and systems

sigmal AMalysis Coursework o Tests on week 6 and 11: 30%o of total score Notes in Powerpoint Presented during lectures and very useful for studying the course Study Guide o A set of questions to build up concepts. Discussions o Strengthen concepts in tutorial sessions Reference books e Supplementary materials to aid study

Coursework ⚫ Tests on week 6 and 11: 30% of total score. Notes in Powerpoint ⚫ Presented during lectures and very useful for studying the course. Study Guide ⚫ A set of questions to build up concepts. Discussions ⚫ Strengthen concepts in tutorial sessions. Reference books ⚫ Supplementary materials to aid study

sigmal AMalysis Expectation from students e Attend all lectures and tutorials ● Study all the notes. Participate in discussions during tutorials Work out all the questions in the study guide at least once Attend the test and take it seriously Work out the questions in the test for at least one more time afterwards

Expectation from students ⚫ Attend all lectures and tutorials. ⚫ Study all the notes. ⚫ Participate in discussions during tutorials. ⚫ Work out all the questions in the study guide at least once. ⚫ Attend the test and take it seriously. ⚫ Work out the questions in the test for at least one more time afterwards

SIGNALS Information expressed in different forms Stock Price e S1.00,S1.20,$1.30,S130 Data File 000010100000100000101 Transmit Waveform (o Primary interest of Electronic Engineers

SIGNALS Information expressed in different forms Stock Price Transmit Waveform $1.00, $1.20, $1.30, $1.30, … Data File x(t) 00001010 00001100 00001101 Primary interest of Electronic Engineers

SIGNALS PROCESSING AND ANALYSIS Processing: Methods and system that modify signals x() System yt Input/Stimulus Output/Respons Analysis What information is contained in the input signal x(o) What changes do the System imposed on the input? What is the output signal y(t?

SIGNALS PROCESSING AND ANALYSIS Processing: Methods and system that modify signals x(t) System y(t) Analysis: • What information is contained in the input signal x(t)? • What changes do the System imposed on the input? • What is the output signal y(t)? Input/Stimulus Output/Response

SIGNALS DESCRIPTION To analyze signals, we must know how to describe or represent them in the first place. A time signal x() 5 0 10 5 20 0—1234 10 10 5 Detail but not informative

SIGNALS DESCRIPTION To analyze signals, we must know how to describe or represent them in the first place. A time signal -15 -10 -5 0 5 10 15 0 5 10 15 20 t x(t) t x(t) 0 0 1 5 2 8 3 10 4 8 5 5 Detail but not informative