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@ -4,7 +4,7 @@ SPDX-FileCopyrightText: 2019 UGent
SPDX-License-Identifier: AGPL-3.0-or-later SPDX-License-Identifier: AGPL-3.0-or-later
--> -->
One super power of the openwifi platform is "Full Duplex" which means that openwifi baseband can receive its own TX signal. Just like a radar! This brings a unique capability of "joint radar and communication" to openwifi. For instance, put two directional antennas to openwifi TX and RX, and the CSI (Channel State Information) of the self-TX signal will refect the change of the target object. One super power of the openwifi platform is "**Full Duplex**" which means that openwifi baseband can receive its own TX signal. Just like a radar! This brings a unique capability of "**joint radar and communication**" to openwifi. For instance, put two directional antennas to openwifi TX and RX, and the **CSI** (Channel State Information) of the self-TX signal will refect the change of the target object.
![](./openwifi-radar.jpg) ![](./openwifi-radar.jpg)
## Quick start ## Quick start
@ -43,7 +43,7 @@ One super power of the openwifi platform is "Full Duplex" which means that openw
The python script needs "matplotlib.pyplot" and "numpy" packages installed. Now you should see figures showing run-time **CSI** and **frequency offset**. Meanwhile the python script prints the **timestamp**. The python script needs "matplotlib.pyplot" and "numpy" packages installed. Now you should see figures showing run-time **CSI** and **frequency offset**. Meanwhile the python script prints the **timestamp**.
![](./csi-screen-shot-radar.jpg) ![](./csi-screen-shot-radar.jpg)
While running, all CSI data is also stored into a file **side_info.txt**. A matlab script **test_side_info_file_display.m** is offered to help you do CSI analysis offline. In this case, run test_side_info_file_display(0) in Matlab. While running, all CSI data is also stored into a file **side_info.txt**. A matlab script **test_side_info_file_display.m** is offered to help you do CSI analysis offline. In this case, run **test_side_info_file_display(0)** in Matlab.
![](./csi-screen-shot-radar-matlab.jpg) ![](./csi-screen-shot-radar-matlab.jpg)
Please learn the python and Matlab script for CSI data structure per packet according to your requirement. Please learn the python and Matlab script for CSI data structure per packet according to your requirement.