Revision as of 12:12, 21 September 2011

Lecture 14 Blog, ECE438 Fall 2011, Prof. Boutin

Friday September 23, 2011 (Week 5) - See Course Outline.

To be written after the lecture.

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 = Lecture 14 Blog, [[ECE438]] Fall 2011, [[User:Mboutin|Prof. Boutin]] =
-Wednesday September 21, 2011 (Week 5) - See [[Lecture Schedule ECE438Fall11 Boutin|Course Outline]].
+Friday September 23, 2011 (Week 5) - See [[Lecture Schedule ECE438Fall11 Boutin|Course Outline]].
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+To be written after the lecture.
-In Lecture 14, we discussed the possibility of an extra credit project involving signal resampling and filtering.
-After this slight diversion, we continued discussing the sampling
-<math>x_1[n]=x(T_1 n)</math>
-of a continuous-time signal x(t). We obtained and discussed the relationship between the DT Fourier transform of  <math>x_1[n]</math> and that of a downsampling <math>y[n]=x_1[Dn]</math>, for some integer D>1.  We then obtained the relationship between the DT Fourier transform of  <math>x_1[n]</math> and that of an upsampling of x[n] by a factor D. In the next lecture, we will use this relationship to figure out how to transform this signal into the  (higher resolution) signal
-<math>x_2[n]=x\left( n \frac{T_1}{D} \right)</math>.
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-Side notes:
-*I think this may be a good time to pass some advice to current/future ECE301 students on [[Peer_Legacy_ECE301|the peer legacy page]].
-*Here is a [[Student_summary_sampling_part1_ECE438F09|Rhea page on sampling contributed by a student]].
-*[[Hw3_ECE438F11|HW3]] is now posted. It is due next Wednesday.
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