| 220 | | <tr><br><br> |
| 221 | | Using the measured signal power, along with the distance between the transmitted and receiver, we obtained a signal amplitude-distance pair. We many of these pairs using different transmitters and receivers. We then plotted these items on a graph and found the exponential fit for the graph, as shown below. </br></br> |
| 222 | | </tr> |
| 223 | | <tr> |
| 224 | | <td><img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR1/SNR%20fit.png" height=230> |
| 225 | | </td> |
| 226 | | </tr> |
| 227 | | <tr> |
| 228 | | <td> |
| 229 | | <br> |
| 230 | | <b> Analysis: </b> As shown in this experiment, the line of best fit follows a generally negative and exponential curve but some of the points are no where close to the curve. The scattering of the data points signify either an error in signal processing or simply not enough data points in these graphs. We believed the latter might have had a hand in this error. |
| | 220 | |
| | 221 | |
| | 222 | |
| | 223 | |
| | 224 | <tr> |
| | 225 | <td> |
| | 226 | <br> |
| | 227 | <b> Analysis: </b> Using the measured signal power, along with the distance between the transmitted and receiver, we obtained a signal amplitude-distance pair. We many of these pairs using different transmitters and receivers. We then plotted these items on a graph and found the exponential fit for the graph. As shown in this experiment, the line of best fit follows a generally negative and exponential curve but some of the points are no where close to the curve. However, the scattering of the data points signify either an error in signal processing or simply not enough data points in these graphs. We believed the latter might have had a hand in this error. |
