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| − | + | Upsampling with en emphasis on the frequency domain | |
| + | </center> <font size="2"> | ||
| + | By: Michael Deufel | ||
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| − | + | <font size="4">1. Introduction</font> | |
| − | + | <font size="4">2. Derivation</font> | |
| − | 4. Conclusion | + | <font size="4">3. Examples</font> |
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| + | <font size="4">4. Conclusion</font> | ||
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| − | The purpose of Upsampling is to manipulate a signal in order to increase the sampling rate. | + | 1. Introduction <font size="3"></font> |
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| + | <font size="3">The purpose of Upsampling is to manipulate a signal in order to increase the sampling rate.</font> | ||
| + | |||
| + | <font size="3"> This is done by:</font> | ||
| + | |||
| + | <font size="3"></font> Step 1: Descretise the signal | ||
| + | |||
| + | <font size="3"> Step 1: Pad original signal with zeros</font> | ||
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| + | <font size="3"> Step 2: Taking the DTFT</font> | ||
| + | |||
| + | <font size="3"> Step 3: Sending through a LPF (low pass filter)</font> | ||
| + | |||
| + | <font size="3"> Step 4:Taking the inverse DTFT to return to the time domain</font> | ||
| + | </font></font></font> | ||
| − | + | <font size="5"><font size="2"><font size="4"><font size="3">We will overview the whole process but focus on the effect upsampling has in the frequency domain </font> </font> </font> </font> | |
| − | + | [[Category:Slecture]] [[Category:ECE438Fall2014Boutin]] [[Category:ECE]] [[Category:ECE438]] [[Category:Frequency_Upsampling]] | |
Revision as of 13:05, 14 October 2014
Upsampling with en emphasis on the frequency domain
By: Michael Deufel
1. Introduction
2. Derivation
3. Examples
4. Conclusion
1. Introduction
The purpose of Upsampling is to manipulate a signal in order to increase the sampling rate.
This is done by:
Step 1: Descretise the signal
Step 1: Pad original signal with zeros
Step 2: Taking the DTFT
Step 3: Sending through a LPF (low pass filter)
Step 4:Taking the inverse DTFT to return to the time domain
We will overview the whole process but focus on the effect upsampling has in the frequency domain
