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