Signals and Electronics

Code:

EBE0016

Acronym:

SELE

Keywords
Classification	Keyword
OFICIAL	Engineering Sciences

Instance: 2011/2012 - 2S

Active?	Yes
Responsible unit:	Department of Electrical and Computer Engineering
Course/CS Responsible:	Master in Bioengineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIB	83	Syllabus	2	-	6	70	162

Teaching language

Suitable for English-speaking students

Objectives

Aims:
To endow students with basic knowledge in signals analysis, basic electronic circuits, data acquisition electronics, in continuous and in discrete time, with a special emphasis in bio-engineering applications which allow a relationship between the studies of forthcoming subjects.
To make students practice and apply their knowledge, not only in a written way, but also in coordination with comtemporary laboratory classes.
To familiarise students with the instrumentation and methods at the electronics laboratory.
To carry out activities of integration in the analogue and digital domains.

Learning Outcomes:
To be familiar with elementary signals, their mathematical formulations; to be capable of calculating their characteristics;
To manipulate and transform signals; to analyse and decompose signals; to compare signals; to measure signals in the laboratory;
To artificially synthesise and generate signals in the analogue and digital domains and to deploy signals in a practical way;
To operate with various signals and carry out their convolution;
To be familiar and to manipulate signal description in the frequency domain by means of the Fourier series and transform in the continuous and discrete domains;
To be familiar with the description of systems and their properties, particularly linear and time invariant systems; to be familiar with the meaning, way of obtaining and analysing the characteristic function of a system and its frequency response; to know how to use Nyquist and Bode diagrams;
To be familiar with and use block diagrams;
To learn how to calculate a system's response to an arbitrary signal;
To know how to analyse an electronic circuit and how to perform a phasorial analysis;
To be familiar, to know how to calculate and interpret circuits with basic electronic blocks, namely the operational amplifier, the diode rectifier, the transistor amplifier and switch, the elementary logic gates, the elementary filters, the comparators simple and with hysteresis;
To be familiar with the theoretical notions and electronic processes of sampling, A/D and D/A converters and to know how to interpret the operation of data acquisition systems and signal production with computers.

Program

1. Examples of bio-signals and their processing systems. Signals: characteristics, transformations, combinations, decomposition and comparison; Signal correlation.
2. Fourier analysis for continuous and discrete signals.
3. Linear and time invariant systems: impulse response and convolution. Block diagrams.
4. Fourier analysis for continuous and discrete systems; Frequency response; Bode diagrams.
5. AC circuit analysis and phasor analysis. Circuit analysis with the Fourier transform and differential equations. Simulation of circuits.
6. Analogue electronics: devices and basic functions: diode rectification, transistor, zener diode, regulation, amplification, elementary filtering and modulation. Non-linear circuits: limiters, comparators.
7. Operational amplification. Complement of circuit analysis. Linear and non-linear circuits with amp-ops.
8. Data acquisition: sampling, quantization, coding and signal reconstruction.

Mandatory literature

Oppenheim, Alan V.; Signals & systems. ISBN: 0-13-651175-9
Alexander, Charles K.; Fundamentos de circuitos eléctricos. ISBN: 0-256-25379-X
Adel S. Sedra, Kenneth C. Smith; Microelectronic circuits. ISBN: 0-19-514252-7

Complementary Bibliography

Silva, Manuel de Medeiros; Introdução aos circuitos eléctricos e electrónicos. ISBN: 972-31-0696-5
Lourtie, Isabel M. G.; Sinais e sistemas. ISBN: 972-592-130-5
Buck, John R.; Computer explorations in signals and systems. ISBN: 0-13-732868-0
Campilho, Aurélio Joaquim de Castro; Instrumentação electrónica. ISBN: 972-752-042-1
Carlson, Gordon E.; Signal and linear system analysis. ISBN: 0-471-12465-6
Soliman, Samir S.; Continuous and Discrete Signals and Systems. ISBN: 0-13-569112-5
Manuel de Medeiros Silva; Circuitos com transistores bipolares e MOS. ISBN: 972-31-0840-2

Teaching methods and learning activities

- Theoretical-practical classes will be based on the presentation of the program along with illustrative calculated examples, with demonstration of signals and circuits analysis and synthesis techniques, as well as problem solving. Problems are given for resolution.
- Laboratory classes in the scope of the topics will take place at the course unit of Integrated Laboratories 4. They will be divided into practical assignments with significant complexity in the signals and electronic circuits area with activities of project, theoretical analysis, simulation and experimental construction.

- Study and elaboration of reports of the practical assignments outside class time.

Software

Matlab 6 R12.1
Outro

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Attendance (estimated)	Participação presencial	48,00
	Total:	-	0,00

Eligibility for exams

According to General Evaluation Rules of FEUP, students have to attend classes regularly.

Calculation formula of final grade

Final Grade will be based on two tests or one exam:
T1- a mandatory test to be graded from 0 to 20.
T2- It will cover the themes not covered in T1 and it will take place at the same time as the final exam. It is for students who reached a minimum grade of 10 in T1. This test will be graded from 0 to 20.
Both tests are worth the same.

Final Grade will be based on the following formula:
(T1+T2)/2

If students do not reach a minimum grade of 10 in T1, they have to attend a final exam, which will cover all the themes of the course unit. Therefore final grade will be based on the classification reached in the final exam.
Instead of attending the final exam, students can attend recurso (resit) exam.

Even if students reach a higher grade than 10 in T1, they can opt to attend a final exam, instead of T2. Therefore final grade will be based on the classification reached in the final exam or recurso (resit) exam.

Students have to attend an oral exam, if they reach a higher than 18 grade.

Examinations or Special Assignments

2 tests
Problem solving during classes

Laboratory assignments will take place at the course unit of Integrated Laboratories 4.

Special assessment (TE, DA, ...)

Students will be assessed as regular students. However, to be admitted to exams students have to follow General Evaluation Rules of FEUP.

Classification improvement

Recurso (resit) exam

Observations

Students have to attend theoretical-practical classes and cannot miss more classes than allowed by the rules.
Even if students justify their absence, they have to carry out the assignments scheduled for that class, in any other class or outside class time.