Please post your reviews, comments, and questions below.
- Review by Yerkebulan Y.
In introduction, you forgot to mention that decimator also includes low-pass filter, also you did not clearly explain why low-pass filter is needed. Good explanation of derivation formula and clear graphs.
- Review by Hyungsuk Kim
You forgot to put low-pass filter before the decimator. Except that everything is very clear and graphs and example of downsampling is easy to undertand. Great work!
- Review by Yijun Han
The derivation and the examples of downsampling look nice, but you need to explain why decimator needs a lowpass filter before the downsampling. Also, you need to add a title for your page.
- Review by Xian Zhang
The whole slecture looks very clear and clean. But you might need to make each part more clear and separated. Also you can add a overview in the beginning to make reader easier to have a big idea of your slecture. And you need a title and a return link in the bottom oof the comment page.
- Review by Chloe Kauffman
It would be nice if you added an example with a reason as to why you would want to downsample. I.e. not enough memory capacity for current sampled rate. Also, you didn't seem to explain much as to why a decimator needs a LPF prior to downsampling. Where you started explaining a limitation for the value of D to prevent aliasing, you could have added the LPF need background.
I also think you could have been more clear as to how each DT signal was derived. For example, you started in the picture with x[n] then D then x2[n], but then throughout the rest of the slecture you refer to an x1[n], so maybe making it clear that x1[n] is formed from a bandlimited CT signal x(t) that was sampled with period T1.
The graphs are done well and help draw together what you are doing, adding the LPF graph would be a great addition.
- Review by Michel Olvera
Your Slecture covers most of the topic and the graphs give a better understanding of the material. A good improvement would be adding the explanation of the low pass filter needed before the downsampling process. Good job!
- Review by Fabian Faes
I thought that this slecture covered most of the topic discussed and that the graphs used were well made and explained downsampling well. I think that block diagrams would have also been a valuable addition to aid the understanding of the process. Like others have mentioned I do agree that an explanation of the low pass filter are desirable.
- Review by Ryan Johnson
I liked the step by step graphical illustrations of down sampling. This was very helpful to me because I am a visual learner. Good job overall!
- Review by Evan Stockrahm
Organizationally, I could use a title for the page letting me know what you are about to teach me. Also try and keep spacing between lines similar for a professional look. The plots in the example are extremely helpful to see how it all works.
- Review by student 10
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