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| − | + | The graphs look great. It was nice and easy to follow material. Good job! | |
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Revision as of 03:22, 15 October 2014
Questions and Comments for
Please post your reviews, comments, and questions below.
- Review by Miguel Castellanos
You have a good mix of derivations/figures and explanations (text), which makes it easy to follow your thought process and is important to explaining the concepts. Your first two figures clearly show how to downsample a signal. Some small mistakes are a convolution symbol in your first derivation that should not be there, your sum for the expression of the DTFT of a downsampled signal should start from 0, and your last figure shows a different cutoff frequency than what you derived. Other than that, nicely done!
- Review by Michael Hayashi
I like the simple depiction of downsampling in your first two graphs. The LaTeX gets a little out of hand in places. I recommend caution using quotation marks for formatted type and advocate the "math" tags instead. The definition of $ s_D[m] $ should have $ m $ appear in place of $ n $ in the middle expression. It may be beneficial to explain that the $ 2\pi $-periodicity of the downsampled DTFT is maintained through a combination of $ D $-factor reduction of the period coupled with the offset copies introduced by the summation. The motivation for and derivation of the cutoff freqeuncy of the low-pass filter was expressed well. Overall, the content was very good.
- Review by Fabian Faes
The format of this slecture is easy to follow and the mathematical explanation of the decimator is easy to follow. I enjoyed the way the graphs explained the downsampling well and the fact that it was written in easy to understand terms. The conclusion covers all the important points and is straight to the point. great job!
- Review by Robert Stein
The graphs look great. It was nice and easy to follow material. Good job!
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