Signals and Systems

Code:

EEC0024

Acronym:

SSIN

Keywords
Classification	Keyword
OFICIAL	Basic Sciences for Electrotechnology

Instance: 2009/2010 - 2S

Active?	Yes
Web Page:	http://paginas.fe.up.pt/~anibal/SSin/
Responsible unit:	Fundamental Sciences and Electrotechnics
Course/CS Responsible:	Master in Electrical and Computers Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEEC	89	Syllabus since 2007/2008	2	-	8	87	213

Teaching language

Portuguese

Objectives

The main aim of this course unit is to endow students with core engineering fundamental knowledge (CDIO Syllabus 1.2 and 1.3) related to:
• continuous time systems (time, frequency and state space analysis)
• feedback systems
• control systems

This course unit also aims to develop students’ personal and professional skills at the level of engineering reasoning, problem solving, experimentation, knowledge discovery, system thinking and personal skills and attitudes (CDIO Syllabus 2.1, 2.2, 2.3 and 2.4).

Program

1. Time-invariant systems analysis
Causal systems; Unilateral Laplace transform; Systems described by differential equations; Electric circuits: domain analysis; Transfer function: poles and zeros; Time response of time-invariant systems; First and second order systems; Dominant poles and higher order systems.
2. Time-invariant systems analysis in frequency
Sinusoidal steady state response to entries; Frequency response; Polar plots; Bode plots; Base elements and asymptotic plots; Real and complex poles and zeros; Classification of systems as filters; Main characteristics of a filter; Introduction to filter design
3. Time-invariant systems analysis in state spaces
Differential equations systems; Matrix representation; State spaces; Modal trajectory analysis;
4. Feedback systems
Interconnection of systems; Block diagram algebra; Structure of a feedback system; Performance and stability; Criteria and tools to analyse stability; Stability boundaries
5. Introduction to compensation
Compensation structures: feedback and feed-forward; Design of compensators: objectives and tools; Phase feedback and feed-forward; Elementary actions of control: proportional, integral and derivative; PID controllers.

Mandatory literature

Ribeiro, Maria Isabel; Análise de Sistemas Lineares. ISBN: 972-8469-13-6
Lourtie, Isabel M. G.; Sinais e sistemas. ISBN: 972-592-130-5
Carvalho, Jorge Leite Martins de; Sistemas de controle automático. ISBN: 85-216-1210-9

Complementary Bibliography

D.Azzo, John Joachim; Linear Control System Analysis and Design. ISBN: 0-07-066251-7
Ogata, Katsuhiko; Modern Control Engineering

Teaching methods and learning activities

Theoretical classes: Presentation of the program; Presentation and analysis of examples;
Theoretical-practical classes: Resolution of exercises and by the professor and students; Answer to students’ questions and doubts.

Software

Matlab 6 R12.1

keywords

Technological sciences > Engineering > Systems engineering > Systems theory
Technological sciences > Engineering > Systems engineering > Systems theory

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Attendance (estimated)	Participação presencial	80,00
midterm exams	Exame	2,00		2010-05-19
Final exam	Exame	2,00		2010-07-23
Study along the semester and preparation for exam	Exame	132,00		2010-07-23
	Total:	-	0,00

Eligibility for exams

To be admitted to exams, students:
- cannot miss more theoretical-practical classes than allowed by the rules;
- have to reach a minimum grade of 25% in the continuous assessment component.

Calculation formula of final grade

Ordinary students: Final Grade (F) will be based on the following formula: F=0.6E + 0.4CA, being E the final exam and CA the continuous assessment.

Students who do not need to attend classes: Final Grade (F) will be the result of the Final Exam (E).

Comment: To reach a higher grade than 18 (out of 20), students have to attend an oral exam, which will take place at the end of the season of exams.

Examinations or Special Assignments

Continuous assessment comprises two mini-tests (1 hour each). Continuous assessment grade will be based on the average grade of these two tests. If students miss one of the mini-tests, they will earn a 0.

Special assessment (TE, DA, ...)

Students with a special status and who do not need to attend classes (according to line a) and b) of Article 4 of General Evaluation Rules of FEUP), have to attend an exam.
Exams for students who can attend exams at special seasons (line 5 of Article 6 of General Evaluation Rules of FEUP) may comprise an oral component. Students will be informed beforehand.

Classification improvement

Final exam

Observations

Students, who attended this course unit last year, will be assessed only based on the final exam. However, they can attend classes again. They need to enrol in theoretical-practical classes and attend the mini-tests. This decision is irreversible.