ECE 622

E. Kamen and B. Heck, “Fundamentals of Signals and Systems Using the Web and MATLAB”, 2^nd ed. Prentice-Hall, 2000.
B.P. Lathi, “Linear Systems and Signals”, 2^nd ed., Oxford Univ. Press, 200.
C.L. Phillips, J.M. Parr and E.A. Riskin, “Signals, Systems and Transforms”, 3^rd ed., Prentice-Hall, 2002.
S. Haykin and B. van Veen, “Signals and Systems”, 2^nd ed., Wiley, 2002.
Γ. Καραγιάννης και Κ. Τζιτζιράχου, «Εισαγωγή στα Σήματα και Συστήματα», Παπασωτηρίου, 2003.
J.R. Buck, M.M. Daniel and A.C. Singer, “Computer Explorations in Signals and Systems Using MATLAB”, Prentice-Hall, 2001.

top of page

Tutorials

TO BE DETERMINED.

No new material will be presented during these tutorial sessions. Rather, these tutorial sessions are designed so

that the students ask questions related to the homework problems, the lecture notes, and related topics.

top of page

Lectures

Tuesday, Friday 10:30-12:00p.m., ΧΩΔ01 106

top of page

Prerequisite

ECE 220

top of page

Lecture Notes

C.D. Charalambous, Signals and Systems II

top of page

Course Description

Review of Basic Properties of Discrete-Time (DT) Signals and Systems

DT Signals, DT Systems: Basic Properties.
Linear Systems: Superposition. Linear-Time Invariant (LTI) Systems: Convolution Sum.
Linear-Time Invariant Systems: General Solutions, Recursive Solutions.
Block Diagram Representation of LTI Systems.
State Description of LTI Systems.

Fourier Representation of DT Signals

· Response of LTI Systems to Harmonic Signals.

· Definition of DT Fourier Series (DTFS) Representation of Periodic

· Signals: Properties.

· Analysis of LTI Systems via DTFS Representations.

· Definition of DT Fourier Transform (DTFT) of Aperiodic Signals:

· Properties.

· Convergence Issues of DTFTs.

· Analysis of LTI Systems via DTFTs.

The Z-Transform

· Response of LTI Systems to Complex Exponentials.

· Definition of the Two-Sided Z-Transform: Region of Convergence.

· Properties of the Two-Sided Z-Transform.

· Analysis of LTI Systems via Z-Transforms: Causality, Stability.

· Definition of the Unilateral Z-Transform: Applications to LTI Systems (Zero-Input, Zero State Responses).

Frequency Analysis of DT Signals and Systems

· Magnitude and Phase Representations of DTFT: Bode Plots.

· Frequency Response of LTI Discrete-Time Systems.

· Ideal Frequency Selective Filters: Low Pass, High Pass, Band Pass.

· Frequency Analysis of First and Second Order DT Systems.

· Finite-Impulse Response (FIR), Infinite-Impulse Response (IIR).

· Filter Structures: Moving Average Filters.

· Sampling of Continuous-Time Signals: Aliasing, Signal Reconstruction.

· Discrete-Time Processing of Continuous-Time Signals.

Applications of Transform Techniques to Communication Systems

· Modulation Systems: Amplitude Modulation via Complex Exponential and Sinusoidal Signals.

· Demodulation Systems: Coherent and Non-Coherent Techniques.

· Pulse Amplitude Modulation.

· Multiplexing Systems: Frequency and Time-Division.

Applications of Transform Techniques to LTI Digital Feedback Systems

· Applications to LTI Discrete Feedback Systems

· Analog-to-Digital and Digital-to-Analog Conversions

· Applications to Sample Data LTI Feedback Systems

top of page

Grading Policy

Homework: A set of homework problems (assignments) covering most of the material presented during the lectures will be given.

Quizzes: 10-15 minute Quizzes will be given on the following dates:

Quiz 1: Tuesday 10:30-10:45a.m., September 13, 2005.

Quiz 2: Friday 10:30-10:45a.m., September. 23, 2005.

Quiz 3: Tuesday 10:30-10:45a.m., October 4, 2005.

Quiz 4: Friday 10:30-10:45a.m., October 14, 2005.

Quiz 5: Tuesday 10:30-10:45a.m., November 1, 2005.

Quiz 6: Friday 10:30-10:45a.m., November 11, 2005

Quiz 7: Friday 10:30-10:45a.m., November 18, 2005.

Quiz 8: Friday 10:30-10:45a.m., December 2, 2005.

Mid-Term Examinations: Two mid-term examinations will be given on the following dates:

Examination 1: Tuesday 10:30-12:00p.m., October 18, 2005

Examination 2: Friday 11:30-12:00p.m., November. 25, 2005

Final Grade: The grades will be distributed according to the following measure:

Homework Assignments (8-10): 15 percent

Quizzes (Best 6 out of 8): 15 percent

Mid-Term Examinatios (2): 15 percent each

Final Comprehensive Exam: 40 percent

top of page

Missing Examination Policy

The quiz questions will be based on material covered during the lectures. Students who skip any of the examinations or quizzes are responsible for providing a valid certificate indicating the reasons for their absence. If the reasons are judged acceptable, the students are expected to complete a make-up one, within a week from the designated examination date. Make-up exams or quizzes will consist of two parts, an oral and a written. The students will also be responsible for the course material presented prior to their new examination date.

top of page