Current issues

Exam

There is no penalty for taking exam if you want to improve a grade from "short path".

If you want to improve grade from Test1 or Test2, let me know by email (and start learning). There will be a special option during the Exam1 (an additional test to do after the main exam). The previous grade is cancelled if you take the risk.

Shortcuts

Home page of EDISP
(English) DIgital Signal Processing course
winter 2006/7

Students not registered will not have the access to scores page.

Schedule

Short info: labs will be on Mondays, 8-12 or 12-16.
For the introductory lab (lab0) we met on 9 Oct, 8:15 room 022.
Next lab (lab1) will be 30.10.2006 for P8 (8:15-12) subgroup, 06.11.2006 for the N8 (8:15-12) and NP12 (12:15-16) subgroups.

Please note that the NP12 subgroup has slightly irregular schedule (06.11/20.11/27.11/11.12/8.01/22.01), as we try to alternate with ECONT lab.

Books

A. V. Oppenheim, R. W. Schafer, Discrete-Time Signal Processing, Prentice-Hall 1989 (or II ed, 1999; also acceptable previous editions entitled Digital Signal Processing).

A free textbook covering some of the subjects can be found here: http://www.dspguide.com/pdfbook.htm
The book is slightly superficial, but it can be valuable - at least as a quick reference. Additional books available in Poland:

• R.G. Lyons, Wprowadzenie do cyfrowego przetwarzania sygnałów (WKiŁ 1999)
• Craig Marven, Gilian Ewers, Zarys cyfrowego przetwarzania sygnałów, WKiŁ 1999 (simple, slightly too easy) [en: A simple approach to digital signal processing, Wiley & Sons, 1996]
• Tomasz P. Zieliński, Od teorii do cyfrowego przetwarzania sygnałów, WKiŁ 2002 (and next edition with slightly modified title)

Please remember:

• there are notation differences between lecture and "dspguide"
• The official book is Oppenheim & Schafer (though notation is sometimes different too)
• no book is obligatory in these circumstances

Probably the best choice is to buy O&S. It'll serve you for years, if you are interested in DSP. And it contains a lot of PROBLEMS to solve and learn!

Or you may prefer to buy/borrow a laboratory scriptbook, which is in Polish language (Cyfrowe Przetwarzanie Sygnałów, red. A Wojtkiewicz, Wydawnictwa PW).
 

Lecture slides

Lecture number = week number in schedule. Lecture 1/Lecture 2 slides: lect1.pdf
Convolution example: conv_exampl.jpg (Lecture 3=EMISY)

Lecture 4/5 slides (without hand-made corrections) lect2.pdf
Warning: VERY old schedule on page 1! Substitute from here:schedule.pdf

Lecture 6 (FFT):
lect5.pdf
FFT decimation in time diagram: fftbutterfly.jpg
DFT resolution: dftresol.jpg
Window functions: winfun.jpg
FT/DTFT/DFT/FFT naming summary: ftsummary.jpg

Lecture 7:Test I (sorry, no access ;-) + instantaneous spectrum (see below)
instspectrum1.jpg
instspectrum2.jpg

Lecture 8 (Z-transform, filters)
see at the end of lect5.pdf
and Zt_of_conv.jpg
and What is all this needed for?
Lecture 9 (and 10): Fir and IIR filter design:lect8.pdf
z and H(z) .jpg
diff. eq. and H(z) .jpg
FIR advanced methods .jpg
IIR - impulse invariance method.jpg
IIR - bilinear transformation and optimization methods.jpg

Lecture 11: Digital signal processors lect12_dsp.pdf

Lecture 12 slides (Stochastic DT signals): lect9.pdf

week 13/14: holidays

Lecture 15 (Jan 9 2006): 2D signal processing lect13.pdf (and): review

Lecture 16: test II (up to signal processors), JPEG compression as an example of some 2D concepts: lect_jpg.pdf

Lecture 17: final review + advanced techniques....

• AD/DA conversion with oversampling and noise shaping read for example here (Last two subchapters: "Multirate..." and "Single bit...")
• Orthogonal transforms - DCT and image compression read for example here (JPEG subchapter)

Homework2: here

It was due on Jan 9, 2007, but if you had submitted it before holidays I would have checked your solutions before the review, so we'd be able to discuss them.

Lab info: example lab exercises

Disclaimer:

Openly speaking, they are exercise sets current at the time of posting. I reserve the right to make some important modifications before the actual lab, to give different sets to different groups etc. (and I usually do review the text before giving it....).

• Lab 1: Signals, systems, frequency
  • Simple MATLAB usage: make a vector, plot x - y plot with proper data on axes, make a simple m-function.
  • DT signal as a sampled CT signal: plot sample values of a sin() with a frequency of 1 kHz, sampled with 10 kHz (etc). Put x-axis values as sample index, CT instant, ....
  • Normalized frequency concept (e.g. What is the θ value in the above example?)
  Lab exercises: lab0a.pdf
  
• Lab 2: Spectral analysis (+ continuation of lab1)
  • Impulse response of a system; initial conditions etc.
  • DFT properties, effect of limited observation time (windowing)
  • Spectrum of a rectangular impulse
  Lab exercises: lab2plus1cd.pdf
  
• Lab 3: Instantaneous spectrum
  Lab exercises: lab03.pdf
• Lab 4: Filter design
  Lab exercises: lab4.pdf
• Lab 5: we don't do it (I'm just using old numbering scheme with 7 labs....)
• Lab 6: Signal processors
  Lab exercises: lab6.pdf
• Lab 7: Image processing
  Lab exercises: lab7.pdf