View Proposal #238
If this proposal belongs to you, you are authorized to update it. Use the menu on the right.
| ID | 238 |
|---|---|
| First Name | Le |
| Last Name | Gui |
| Institution | University of Iowa |
| Speaker Category | graduate student |
| Title of Talk | Digitalization in the signal processing |
| Abstract | In real life when we store and transmit analog audio or video signals, we first obtain a digital representation of the signal. This process is called Digitalization or Analog-to-Digital (A/D) conversion and consists of two steps: sampling and quantization. In the "sampling" step we restrict time to a discrete sample of the continuous times. In the "quantization" step we discretize the real values of the time-discrete sample of the first step. We will discuss different quantization methods based on binary expansion or Beta-expansion and compare their "accuracy." "Accuracy" means that we can re-construct a good approximation of the original signal from its digitalization. Or "can you hear me now?" |
| Subject area(s) | 94A12 |
| Suitable for undergraduates? | Yes |
| Day Preference | |
| Computer Needed? | Y |
| Bringing a laptop? | Y |
| Overhead Needed? | |
| Software requests | |
| Special Needs | |
| Date Submitted | 3/28/2008 |
| Year | 2008 |