455-0342/01 – Modulated Signals (MS)

Gurantor departmentDepartment of Measurement and ControlCredits6
Subject guarantorIng. Zdeněk Macháček, Ph.D.Subject version guarantorIng. Zdeněk Macháček, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year1Semesterwinter
Study languageCzech
Year of introduction2003/2004Year of cancellation2009/2010
Intended for the facultiesFEIIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
MAC37 Ing. Zdeněk Macháček, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Combined Credit and Examination 2+12

Subject aims expressed by acquired skills and competences

The course deals with the basic analog and digital bandpass signaling techniques. These are applicable to both the analog and digital communication systems. Next students study basics of the digital signal processing. Amplitude analog modulations and the angle analog modulations schema and algorithms are presented (AM, DSB-SC, SSB-SC, PBSK, PM and FM signals). Digital modulations and their algorithms are presented (OOK, ASK, PSK, FSK, QAM, APSK). Theoretical lectures are followed by the laboratory seminars.

Teaching methods

Lectures
Individual consultations
Tutorials
Experimental work in labs
Project work

Summary

The course Modulated Signals and the Bandpass Signaling is closely related to the courses Signals and Systems, Fundamentals of Signals and Systems Theory and Digital Signals and Systems. It is appointed for students and professionals in electrical engineering, measurement, control, informatics and communications. Student will master the mathematical description and representation of bandpass waveforms and systems, will be acquainted with the basic bandpass signaling techniques. These are applicable to both the analog and digital communication systems. Amplitude analog modulation and the angle analog modulation schema are presented (AM, DSB-SC, SSB-SC, PBSK, PM, FM and NBFM signals). Digital modulations of bandpass signals are presented too (OOK, ASK, PSK, FSK, QAM, APSK). The knowledge of mathematics in the extent of the obligatory mathematical course at VŠB TU Ostrava, FEI, is the preliminary for the study of the course. Basics of physics and electrical engineering are useful. The command of the preliminary classes Signals and Systems, Fundamentals of Signals and Systems Theory and Digital Signals and Systems is assumed. The course Modulated Signals and the Bandpass Signaling deals with a rather large thema in an one-semester course. The physical meaning of the mathematical representation of the signals and systems is always discussed. For the mathematical development of some formulas describing the communication process from the statistical viewpoint is student referred to the literature.

Compulsory literature:

Couch L.W.II: Modern Communication Systems. Prentice Hall, New Jersey, 1994. Couch L.W.II: Digital and Analog Communication Systems. Prentice Hall, New Jersey, ISBN 0-13-089630-6, 2002. Chen Chi-Tsong: System and Signal Analysis. Saunders College Publishing, New York 1994.

Recommended literature:

Nevřiva,P, Macháček Zdeněk.:Modulated signals. Sylabs at WWW pages of department and at server D400,2006-2008

Way of continuous check of knowledge in the course of semester

Verification of study: Student must work out two laboratory works. Student can receive up to 10 points for each of works. Maximum number of points student can gain through tests is 2 * 10 = 20 points. Student has to elaborate one test. Student can acquire up to 20 points for it. Student can gain up to 20 + 20 = 40 points from the laboratory excercices. To pass the course student has to pass both the laboratory part of the course and the final exam. the Final exam consists of writing part 0 - 50 points and oral part 0 -10 points. Student have to succeed in all parts of examination. Conditions for credit: Student must work out two presented laboratory works and one test. To pass the laboratory part of the course student has to gain at least 10 points from the laboratory excercices

E-learning

Další požadavky na studenta

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: 1.Introduction: Modulated Signals and the Bandpass Signaling, the classification and the content of the course. Coherence of the theme to the courses from bachelor's study. 2.Mathematical representation of the bandpass waveforms - modulated signals. Basic definitions. Complex envelope representation. 3.Typical amplitude modulations. Mathematical formulas. Graphical characteristics of amplitude modulated signal in time and in frequency domain AM, DSB-SC, SSB-AM. 4.Typical phase and frequency modulations, QM modulation. Mathematical formulas. Graphical characteristics of phase and frequency modulated signal in time and in frequency domain PM, FM, QM. 5.Bandpass signal filtering. Equivalent baseband filters. Distortionless transmission. Transfer characteristics of a distortionless bandpass channel. The group delay and the phase delay. 6.Bandpass dimensionality theorem. The sampling theorem for the bandpass waveform. Bandpass dimensionality theorem for nonuniformly spaced time samples of the waveform. Standard modulations. 7.Spectrum of bandpass signals. PSD of standard bandpass signals. SHV. Evaluation of power. Autocorrelation function of modulated signal. 8.Components of of bandpass systems I. 9.Components of of bandpass systems II. 10.Digital signal processing. DSP parameters, functions, peripheries, programming. 11.Basic digital modulations basic frequency spectrum. Impulse and digital signal processing. Impulse amplitude modulation PAM. Impulse code modulation PCM. 12.Principes and types of A/D converters, D/A converters. 13.Digital bandpass modulation. Constelations. Principes and characteristics. Modulations OOK, FSK, PSK, QAM. 14.Summarize of Modulated signals Laboratories: 1.The introductory laboratory lecture. The project of the laboratory communication system. The assignment of the laboratory tasks. 2.Matematical representation of a bandpass signal. The model verification by the measurement of signal parameters. 3.Modelating and measuring of amplitude modulated signal AM, DSB-SC, SSB-AM. 4.Modelating and measuring of phase and frequency modulated signal PM, FM, QM. 5.Bandpass signal filtering. Equivalent baseband filters. Measurement of the filtered signal parameters. Distortionless transmission. Amplifiers. Measurement of an amplifier fequency response. Measurement of group delay and the phase delay of a bandpass signal. 6.The sampling theorem. The sampling theorem for the bandpass waveform. Measurement and simulation. 7.Computation and modelling SHV, power, autocorrelation function of modulated signals and complex envelope. 8.Presentation of Presentation of Laboratory work No.2. 9.Computation and modelling of Components of bandpass systems I 10.Computation and modelling of Components of bandpass systems II 11.Digital signal processing by DSP, Peripheries for Digital signal processing by DSP 12.Digital signal processing by DSP, Programming and examples of mathematical formulas developed by DSP 13.Presentation of Laboratory work No.2. 14.Final Test.

Conditions for subject completion

Full-time form (validity from: 1960/1961 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 40 (40) 0
                Laboratory work Laboratory work 20  0
                Written exam Written test 20  0
        Examination Examination 60 (60) 0
                Written examination Written examination 50  0
                Oral Oral examination 10  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2009/2010 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering P Czech Ostrava 1 Compulsory study plan
2009/2010 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 1 Compulsory study plan
2009/2010 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering K Czech Ostrava 1 Compulsory study plan
2009/2010 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 1 Compulsory study plan
2008/2009 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering P Czech Ostrava 1 Compulsory study plan
2008/2009 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering K Czech Ostrava 1 Compulsory study plan
2008/2009 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 1 Compulsory study plan
2008/2009 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 1 Compulsory study plan
2007/2008 (N2645) Electrical Engineerong, Communication and Computer Systems (2612T041) Control and Informatics Systems P Czech Ostrava 2 Compulsory study plan
2007/2008 (N2645) Electrical Engineerong, Communication and Computer Systems (2612T041) Control and Informatics Systems K Czech Ostrava 2 Compulsory study plan
2007/2008 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering P Czech Ostrava 1 Compulsory study plan
2007/2008 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering K Czech Ostrava 1 Compulsory study plan
2007/2008 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 1 Compulsory study plan
2007/2008 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 1 Compulsory study plan
2006/2007 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering P Czech Ostrava 1 Compulsory study plan
2006/2007 (N2649) Electrical Engineering (2601T004) Measurement and Control Engineering K Czech Ostrava 1 Compulsory study plan
2006/2007 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 1 Compulsory study plan
2006/2007 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 1 Compulsory study plan
2003/2004 (N2645) Electrical Engineerong, Communication and Computer Systems (2612T041) Control and Informatics Systems P Czech Ostrava 2 Compulsory study plan
2003/2004 (N2645) Electrical Engineerong, Communication and Computer Systems (2612T041) Control and Informatics Systems K Czech Ostrava 2 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner