| 381 | 381 | <b> Analysis: </b> The left image shows the power output of the receiver at the frequency of 1 GHz. As mentioned above, the receiver was calibrated using a wire, signal generator and wiserd. The graph shows a steady increase in output beteen -110 to -60 dBm power input. Using the same carrier frequency, a signal power to distance graph was generated using the calibrated and standardized transmitter and receiver. The calibration obviously made a difference since the data points are not so scattered anymore, even when propagation is wireless, and are much closer to the theoretical free space loss model. The next step was to localize the transmitter using the data in the receivers. |
