(New page: = Lecture 27 Blog, ECE438 Fall 2011, Prof. Boutin = Wednesday October 27, 2011 (Week 10) - See Course Outline. ---- The first...) |
|||
| Line 25: | Line 25: | ||
[[Category:Blog]] | [[Category:Blog]] | ||
[[Category:ECE438]] | [[Category:ECE438]] | ||
| − | [[Category: | + | [[Category:circular convolution]] |
| − | [[Category: | + | [[Category:discrete Fourier transform]] |
Revision as of 11:49, 26 October 2011
Lecture 27 Blog, ECE438 Fall 2011, Prof. Boutin
Wednesday October 27, 2011 (Week 10) - See Course Outline.
The first part of today's lecture was about the fact that the inverse N-point DFT of the product
$ X_N[k] H_N[k] $
is the same as
- the periodic repetition of x[n]*h[n],
- the N-point circular convolution of x[n] and h{n],
provided N> (duration of x) + (duration of h) -1.
In the second part of the lecture, we discussed some basic units of human speech.
Action items
- Solve this problem on zero padding and DFT.
- begin working on HW7.
Previous: Lecture 26 Next: Lecture 28
