Minia University Faculty of Engineering Electrical Engineering Department

Minia University Faculty of Engineering Electrical Engineering Department Electronic and communication Section Lecture 1 System analysis Dr. Eng. Gerges Mansour Salama Tel: 01284240601 gergesmansour@yahoo. com System analysis E-mail: Dr. Gerges M. Salama

Signals and systems: analysis using transform methods and MATLAB / Michael J. Roberts. 2 CHAPTERS CONTENTS Topic (1) Study and analysis of continuous and discrete linear systems and signals Topic (2) State variables to represent continuous and discrete systems Topic (3) Applications of Laplace transforms in the analysis of continuous systems Topic (4) Analysis of continuous systems described by differential equations Topic (5) Z-transforms and its applications in continuous system analysis Topic (6) Study curve flow signal and calculating transfer functions Topic (7) Impulse response and using integration to calculate response of any input to continuous and discrete systems

Introduction to Signals and Systems

Signals and Systems Defined • A signal is any physical phenomenon which conveys information • Systems respond to signals and produce new signals • Excitation signals are applied at system inputs and response signals are produced at system outputs 4

A Communication System as a System Example • A communication system has an information signal plus noise signals • This is an example of a system that consists of an interconnection of smaller systems 5

Signal Types 6

Conversions Between Signal Types Sampling Quantizing Encoding 7

Message Encoded in ASCII 8

Noisy Message Encoded in ASCII Progressively noisier signals 9

Bit Recovery in a Digital Signal Using Filtering 10

Image Filtering to Aid Perception Original X-Ray Image Filtered X-Ray Image 11

Thank you for your attention Dr. Eng. Gerges M. Salama Lecture 1