ECE464-564: DIGITAL SIGNAL PROCESSING

Department of Electrical and Computer Engineering - Oregon State University

ECE 464-564: Digital Signal Processing

Winter Quarter 2009, TR 10:00-11:50 pm, STAG 106

Instructor

Larry Marple, 3011 Kelley Engineering Center (KEC), Phone: 737-3274, Email: marple@eecs.oregonstate.edu

Office Hours: Tu 1-2pm, We 1130am-1230pm, or by email appointment (48 hours minimum notice)

Course Description

This is an introductory course on Digital Signal Processing (DSP) which provides an overview of relevant topics in the analysis and design of systems for processing discrete-time (DT) signals. Among the topics that will be covered: fundamental properties of DT - LTI systems, frequency domain analysis of DT signals with the Discrete-Time Fourier Transform (DTFT), the Discrete Fourier Transform (DFT), and the z-Transform, frequency response and transfer fucntion of DT- LTI systems, signal sampling and reconstruction, digital processing of continuous-time signals, FIR and IIR digital filter design, filter structures.

Prerequisites

This course requires a sound knowledge of signals and systems (ECE 351 and ECE 352 or equivalent courses). Assignments require the use of MATLAB; familiarity with such software is highly recommended.

Textbook

S.K. Mitra, Digital Signal Processing -- A Computer-Based Approach, Third Edition, McGraw-Hill, 2005.

Course Program

Complex Discrete-Time Signals (1)
Discrete-Time Signals and Systems
- Discrete-Time Signals (2.1)
- Typical Sequences and Sequence Representation (2.2)
- The Sampling Process (2.3)
- Discrete-Time Systems (2.4)
- Time-Domain Characterization of LTI Discrete-Time Systems (2.5)
- Finite-Dimensional LTI Discrete-Time Systems (2.7)
- Classification of LTI Discrete-Time Systems (2.8)
- Correlation of Signals (2.9)
Discrete-Time Fourier Transform
- The Continuous-Time Fourier Transform (3.1)
- The Discrete-Time Fourier Transform (3.2)
- Discrete-Time Fourier Transform Theorems (3.3)
- DTFT Computation Using MATLAB (3.6)
- The Frequency Response of an LTI Discrete-Time System (3.8)
- Phase and Group Delays (3.9)
Digital Processing of Continuous-Time Signals
- Sampling of Continuous-Time Signals (4.2)
- Sampling of Bandpass Signals (4.3)
- Analog Lowpass Filter Design (4.4)
- Design of Analog HP, BP, and BS Filters (4.5)
Finite-Length Discrete Transforms
- The Discrete Fourier Transform (5.2)
- Relation between the DTFT and the DFT, and Their Inverses (5.3)
- Operations on Finite-Length Sequences (5.4)
- Discrete Fourier Transform Theorems (5.7)
- Linear Convolution Using the DFT (5.10)
z-Transform
- Definition and Properties (6.1)
- Rational z-Transforms (6.2)
- Region of Convergence of a Rational z-Transform (6.3)
- The Inverse z-Transform (6.4)
- z-Transform Properties (6.5)
- Computation of the Convolution Sum of Finite-Length Sequences (6.6)
- The Transfer Function (6.7)
LTI Discrete-Time Systems in the Transform Domain
- Transfer Function Classification Based on Magnitude Characteristics (7.1)
- Transfer Function Classification Based on Phase Characteristics (7.2)
- Types of Linear-Phase Transfer Functions (7.3)
- Simple Digital Filters (7.4)
IIR Digital Filter Design
- Preliminary Considerations (9.1)
- Bilinear Transformation Method of IIR Filter Design (9.2)
- Design of Lowpass IIR Digital Filters (9.3)
- Design of Highpass, Bandpass, and Bandstop IIR Digital Filters (9.4)
FIR Digital Filter Design
- Preliminary Considerations (10.1)
- FIR Filter Design Based on Windowed Fourier Series (10.2)
- Computer-Aided Design of Equiripple Linear-Phase FIR Filters (10.3)
- Digital Filter Design Using Matlab (10.5)

Other DSP Textbooks

A.V. Oppenheim and R.W. Shafer, Discrete-Time Signal Processing, Prentice Hall, Englewood Cliffs, NJ, 1989.
J.G. Proakis and D.G. Manolakis, Digital Signal Processing: Principles, Algorithms, and Applications, Prentice Hall, Englewood Cliffs, NJ, 2nd Ed., 1992.
E.C. Ifeachor and B.W. Jervis, Digital Signal Processing: A Practical Approach, Prentice Hall, Englewood Cliffs, NJ, 2nd Ed., 2002.

Lecture Notes

PDF files of chapter lecture notes will be e-mailed periodically to students enrolled in the class.

Course Relevant Journal Articles by Instructor

MATLAB Demos and Support Functions

Animated Demos

Links below are exerpts from the CD-ROM of DSP First - A Multimedia Approach by J.H. McClellan, R.W. Shafer, and M.A. Yoder, Prentice- Hall, 1998. You will need the QuickTime application in order to run these demos.

Relating transfer function to frequency response--Demo 1: figure4.mov
Relating transfer function to frequency response--Demo 2: figure5.mov
FIR filter--Demo 1: fir2.mov
FIR filter--Demo 2: fir3.mov
FIR filter--Demo 3: fir10.mov
FIR filter--Demo 4: fir10_r.mov
IIR filter--Demo 1: iir1_a.mov
IIR filter--Demo 2: iir1_za.mov
IIR filter--Demo 3: iir2_r.mov
IIR filter--Demo 4: iir2_th.mov
IIR filter--Demo 5: iir2_z.mov
IIR filter--Demo 6: iir4_r.mov
IIR filter--Demo 7: iir4_th.mov

Grading Policy

Homework: 30%
Midterm Exam: 35% ( Midterm Solutions W09 )
Final Exam: 35% ( Final Exam Solutions W09 )

Exam Schedule

Midterm Exam: Feb. 17
Final Exam: Mar. 18, 2:00-4:00 pm

Useful Links

Homework Assignments

Number	Text Problems (Each Extra Credit [EC] problem worth 1 pt)	Due Date	Solutions
1	2.13, 2.15(b,d), 2.19, 2.26(a,e), 2.30(b,e), 2.41, 2.49(b,d), 2.57, M2.3, M2.4	Jan 15	HW #1 Solutions
2	2.67, 2.71, 2.73, 2.85, 2.91, 3.2, 3.5, 3.6, 3.16, M3.3	Jan 22	HW #2 Solutions
3	3.19(c,e), 3.21(a,b), 3.23(a,c), 3.38(b,c), 3.50(b,c), 3.54, 3.67, 3.68, 3.71, 3.79d, M3.9	Jan 29	HW #3 Solutions
4	3.82(a,c), 4.3(a,c), 4.6, 4.7, 4.12(a,c), 4.13, M4.3, M4.4	Feb 5	HW #4 Solutions
5	5.3, 5.7, 5.15, 5.23, 5.34(note (b) X[5], not X[6]), 6.3, 6.8	Feb 12	HW #5 Solutions
6	6.20(b), 6.24(a), 6.38(a), 6.40(a), 6.41(a)	Feb 19	HW #6 Solutions
7	7.12, 7.16, 7.49, 7.53, 7.56, 7.68, 7.84b, 7.85a; EC: M7.21	Feb 26	HW #7 Solutions
8	9.9a, 9.11a, 9.13, 9.14, 9.23, 9.24, 9.27, M9.5; EC: 9.19, M9.1, M9.8, M9.11; also submit earlier assigned problems 4.13, M4.3, M4.4 (for 1 pt extra credit)	Mar 5	HW #8 Solutions (revised 9 Mar)
9	10.2, 10.15, 10.16, 10.33, M10.2, M10.8; EC: 10.5, 10.18, M10.19	Mar 12	HW #9 Solutions

Verbatim or plaguarized solutions from posted sources will receive a grade of 0.
Assignments are to be submitted at only at beginning of class on the due date. Late homework will not be graded.

Announcements

Final exam solultions posted; see link above.