ECE431H1S -Digital Signal Processing: Lectures

ECE431H1F Fall 2023 --Digital Signal Processings: Lectures

Here is a tentative list of topics to be covered in lectures.


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Lecture No. Lecture Date Topics and Textbook Section(s)
1 Jan. 8 Introduction to course; SyllabusSyllabus 2023(pdf)
1 Jan. 8 Introduction to course; lecture 1(pdf)
2 Jan. 12 The concept of frequency; Ideal continuous to discrete (C/D) and discrete to continuous (D/C) time signal conversion; Ideal periodic sampling; (text sections 4.1,4.2,4.3); lecture 2(pdf)
3Sept. 13 Reconstruction using ideal low pass filter; The sampling theorem for lowpass signals; Application to Bandpass signals
(ed. 2 and 3: 4.1,4.2,4.3,4.8); lecture 3(pdf)
4Sept.15 Uniform Quantization and coding; non-uniform quantization, mu-law
(ed. 2 and 3: 4.8.1,4.8.2,4.8.3) ;lecture 4(pdf)
5Sept.19 Practical sampling; practical A/D and D/A;
(ed 2 and 3: 4.8) ;lecture 5(pdf)
6Sept.20 Examples;
lecture 6(pdf)
7Sept. 22 The Discrete time Fourier Transform/Series (DTFT and DTFS);
(ed. 2 and 3: 2.7, 8.1,8.3); lecture 7(pdf)
8Sept. 26 Sampling the DTFT; The N-point discrete Fourier Transform (N-DFT); (ed. 2 and 3: 8.4, 8.5, 8.6); lecture 8(pdf)
9Sept. 27 N-DFT; Zero padding and digital interpolation
(ed. 2 and 3: 8.4, 8.5, 8.6);lecture 9(pdf)
10Oct. 29 Properties of the N-DFT; Linearity, Circular shift;
Cyclic shift, Time reversal, Parseval's theorem, time exp[ansion and digital interpolation (ed. 2 and 3 : 8.6, 8.7.1, 8.7.2); lecture 10(pdf)
11Oct. 3 Properties of the N-DFT; circular convolution; .
(ed. 2 and 3 : 8.6); lecture 11(pdf)
12Oct. 4 Implementation of LTI filtering using the DFT and circular convolution;
Overlap and add method; Overlap and save method;
(ed. 2 and 3 : 8.7.3)lecture 12(pdf)
13Oct. 6 Multirate systems: Up-sampling and digital interpolation;
Down-sampling and decimation;
(ed. 2 and 3: 4.6.1,4.6.2,4.6.3);lecture 13(pdf)
14Oct. 10 Multirate systems: Oversampling in A/D conversion
(ed. 2 and 3: 4.6.1,4.6.2,4.6.3,4.9.1); lecture 14(pdf)
15Oct. 11 Review class midterm exam 2011(pdf)
16Oct. 13 midterm Exam : Friday , Oct. 13, 4-5 pm, Room BA2195,lectures 1-12 midterm exam 1 solutions(pdf)
17Oct. 17 Efficient computation of the DFT; Fast Fourier Transforms (FFT);
Decimation in time Radix-2 FFT;
(ed 2 and 3: 9.0, 9.2, 9.3); );lecture 15(pdf)
18Oct. 18 Decimation in time Radix-2 FFT-Continued;
(ed 2 and 3: 9.0, 9.2, 9.3);lecture 16(pdf)
19Oct. 20 Implementation of Radix-2 Inverse FFT algorithms;
FFT and IFFT - Practical considerations; N=N1xN2 point FFT; Examples
(ed 2 and 3: 9.3, 9.4, 9.5);lecture 17(pdf)
20Oct. 24 DEcimation in frequency Radix-2 FFT algorithms;
(ed 2 and 3: 9.3);lecture 18(pdf)
21Oct. 25 z-transforms; (ed 2 and 3 chapter 3) lecture 19(pdf)
22Oct. 27 Realizations of FIR systems; Linear phase FIR systems (ed 2, 3: 6.5) lecture 20(pdf)
23Oct. 31 Direct form realizations of IIR systems;(ed 2 and 3: 6-0-6.3)
Cascade realization of IIR systems;(ed 2 and 3: 6.3) lecture 21(pdf)
24Nov. 1 Parallel realizations of IIR systems;(ed 2 and 3: 6.3); Transposed form realizations ; lecture 22(pdf)
25Nov. 3 Realization of FIR filters using the Frequency-Sampling method lecture 23(pdf)
26Nov. 14 Digital filter design (ed 2 and 3: 7.0)
Design of FIR filters- Windowing Method
(ed 2: 7.2, 7.2.1, 7.2.2) (ed 3: 7.5, 7.5.1, 7.5.2)
lecture 24 (pdf)
27Nov. 15 Review class problems from final exam 2011(pdf)
28Nov. 17 midterm Exam : Friday Nov.17, 4-5 pm, Room BA2195,lectures 13-23 midterm exam 2 solutions(pdf)
29Nov. 21 Design of FIR filters- Frequency sampling method
lecture 25(pdf)
30Nov. 22 Design of IIR filters- Butterworth Analog Filters
(ed 2 and : 7.0, 7.1)
lecture 26(pdf)
31Nov. 24 Design of IIR filters- Bilinear Transformation
(ed 2: 7.1.2, 7.1.3) (ed. 3: 7.2.2) lecture 27(pdf)
32 Nov. 28 Design of IIR Filters - Impulse invariance method
Design example using Butterworth filter approximation
(ed 2 : 7.1.1) (ed 3: 7.2.1)
lecture 28(pdf)
33Nov.29 Finite precision effects in DSP, Statistical modeling of roundoff noise, Applications to digital filters;
(ed 2: 6.8), (ed. 3: 6.9)lecture 29(pdf)
34Dec. 1 Examples of roundoff noise calculation in digital filters;
(ed 2: 6.8), (ed. 3: 6.9)
lecture 30 (pdf)
35Dec. 5 Review class; solving problems from past examinations;

exam of 2012(pdf)
36Dec. 6 aReview class; solving problems from past examinations; Continued

exam of 2004(pdf)
37Dec. 8 FINAL EXAM ; 2:00-4:30 pm;