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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. <br> | 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. <br> | ||
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. <br>The graphs are done well and help draw together what you are doing, adding the LPF graph would be a great addition. | 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. <br>The graphs are done well and help draw together what you are doing, adding the LPF graph would be a great addition. | ||
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| + | *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! | ||
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Revision as of 02:46, 15 October 2014
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.
- Author answer here
- 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!
- 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!
