# SIGNALS AND SYSTEMS

 Title ΣΗΜΑΤΑ ΚΑΙ ΣΥΣΤΗΜΑΤΑ / SIGNALS AND SYSTEMS Code ΗΦΥ102 Faculty Sciences School Physics Cycle / Level 2nd / Postgraduate Teaching Period Winter Coordinator Spyridon Nikolaidis Common No Status Active Course ID 600016879

### Programme of Study: Electronic Physics (Radioelectrology)

Registered students: 19
OrientationAttendance TypeSemesterYearECTS
KORMOSCompulsory Course116

 Academic Year 2023 – 2024 Class Period Winter Faculty Instructors Konstantinos Kordas 13hrs Spyridon Nikolaidis 13hrs Weekly Hours 2 Class ID 600238414
Course Type 2011-2015
General Foundation
Mode of Delivery
• Face to face
Digital Course Content
Learning Outcomes
Indroduction to the basics about continuous and discrete time signals and systems, analysis of their operation and design of systems with particular characteristics.
General Competences
• Apply knowledge in practice
• Retrieve, analyse and synthesise data and information, with the use of necessary technologies
• Make decisions
• Work autonomously
• Be critical and self-critical
• Advance free, creative and causative thinking
Course Content (Syllabus)
Continuous time signals and systems - Time domain analysis: Basic continuous-time signals and expression of signals as a function of them. Energy and power signals, Classification of systems, Input-output relation in Linear Time Independent (LTI) systems. Impulse response, Convolution and expression of the output as a function of the impulse response, Describing systems with differential equations and calculation of the impulse response, Response of LTI systems, Analog signals and systems - Frequency domain analysis: Periodic signals and Fourier series, Amplitude and phase spectra, Transfer function of LTI systems, Fourier transforms of continuous time signals, Average power of periodic signals and energy spectral density of continuous signals (Parceval's theorem), Transfer function and impulse response, Filters, Laplace transforms of continuous time signals, Properties of Laplace transforms, Response of LTI systems with Laplace transforms, Transform function and Laplace transform equivalents of circuit components, Stability, time response and filter behaviour of systems with Laplace transforms. Discrete time signals and systems: Classification of discrete-time systems, Analysis of discrete-time linear time-invariant systems, The convolution sum, Difference equation, Implementation of discrete-time systems. The z-Transform and its applications to the analysis of LTI systems: Properties of z-Transform, Inversion of z-Transform, Analysis of LTI systems in z-Domain, Stability. Frequency analysis of discrete-time signals: The Fourier series of discrete-time periodic signals, The Fourier transform of discrete-time aperiodic signals, Properties of Fourier transform. Frequency domain analysis of LTI systems, Frequency response. Design of digital filters: Causality, Design of linear phase FIR filters using windows, Design of IIR filters from analog filters.
Keywords
Continuous and Discrete time Signals and Systems
Educational Material Types
• Slide presentations
Use of Information and Communication Technologies
Use of ICT
• Use of ICT in Course Teaching
Description
Lectures based on power point slides
Course Organization
Lectures783.1
Written assigments692.8
Exams30.1
Total1506
Student Assessment
Description
Written exams
Student Assessment methods
• Written Exam with Problem Solving (Summative)
Bibliography