# Lecture 11 Blog, ECE438 Fall 2014, Prof. Boutin

Friday September 19, 2013 (Week 4) - See Course Outline.

Jump to Lecture 1, 2, 3 ,4 ,5 ,6 ,7 ,8 ,9 ,10 ,**11** ,12 ,13 ,14 ,15 ,16 ,17 ,18 ,19 ,20 ,21 ,22 ,23 ,24 ,25 ,26 ,27 ,28 ,29 ,30 ,31 ,32 ,33 ,34 ,35 ,36 ,37 ,38 ,39 ,40 ,41 ,42 ,43 ,44

Today we first discussed Homework 1 and Homework 2. We then looked at how downsampling a signal changes the Fourier transform. More specifically, we looked at the relationship between the Fourier transform of a sampling x[n] and the Fourier transform of a downsample of this sampling y[n]=x[Dn], where D is a positive integer.

## Action Items

- Finish third homework. It's due Monday.
- Work on your slecture.

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