Lecture 32 Blog, ECE438 Fall 2013, Prof. Boutin
Monday November 4, 2013 (Week 12) - 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 found another way to look at the spectrogram of a signal. More specifically we derived a linear filtering interpretation of the short time Fourier transform. We then used this interpretation to obtain a formula for reconstructing a signal from its spectrogram. The formula boils down to a simple matrix multiplication.
Action items
- Keep working on HW9. It is due Friday.
Previous: Lecture 31 Next: Lecture 33
