| Line 21: | Line 21: | ||
<br> | <br> | ||
| − | '''Theory'''<br> [[Image:Theroy.jpg]] '''or ''' [[Image:CodeCogsEqn.jpg]] | + | '''Theory'''<br> |
| + | Upsampling in the frequency domain<br> | ||
| + | <br> [[Image:Theroy.jpg]] '''or ''' [[Image:CodeCogsEqn.jpg]] | ||
<br> | <br> | ||
| Line 38: | Line 40: | ||
Upsampling rate D = 2 | Upsampling rate D = 2 | ||
| + | |||
| + | <br> | ||
| + | |||
| + | Here is the sampled signal.<br> | ||
[[Image:Graphex.jpg]] | [[Image:Graphex.jpg]] | ||
| − | <br> | + | Upsampling rate D = 2 is applied.<br> |
| − | [[Image:Graphex2.jpg]] | + | [[Image:Graphex2.jpg]] |
| − | <br> | + | Low-Pass filter of cutoff π/2, gain 2 is applied.<br> |
| − | [[Image:Graphex3.jpg]] | + | [[Image:Graphex3.jpg]] |
| − | <br> | + | Final upsampled signal<br> |
| − | [[Image:Graphex4.jpg]] | + | [[Image:Graphex4.jpg]] |
'''Conclusion''' | '''Conclusion''' | ||
Revision as of 07:06, 10 October 2014
OUTLINE
1. Introduction
2. Theory
3. Example
4. Conclusion
_________________________________________________________________________________________________________
Introduction
Upsampling is the process of increasing sampling rate.
Theory
Upsampling in the frequency domain
or 
Example
Upsampling rate D = 2
Here is the sampled signal.
Upsampling rate D = 2 is applied.
Low-Pass filter of cutoff π/2, gain 2 is applied.
Final upsampled signal
Conclusion
