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csi-visualization

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📊 Wi-Fi Channel State Information(CSI) visualization with python

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# CSI Visualization with Python

📊 Wi-Fi Channel State Information(CSI) visualization with python

## Before use
This repo is based on CSI extracted with [Nexmon CSI Extractor](https://github.com/seemoo-lab/nexmon_csi)(Raspberry Pi, Wi-Fi chip: bcm43455c0).  
Therefore, in order to use real-time plot and collect data for visualization, the Nexmon CSI extractor installation must be preceded.  
(The csv data required by this repository can be obtained through [csi-extractor](https://github.com/cheeseBG/csi-extractor))

### 2023 Update
- ~~pcap format is also available~~(To be implemented)

## Installation

* Clone this repo and install the dependencies
```
pip install -r requirements.txt
```
* If you want to use real-time plot, clone this repo to the Raspberry Pi with Nexmon firmware installed.

## Usage

```
python csiexplorer.py [CSI dir] --plt [Plot Type]
```
* Use sample data for Amplitude-PacketIdx plot
```
python csiexplorer.py sample --plt 1 --smp true
```
* Use real-time Amplitude or Phase plot
> After installing the Nexmon firmware on the Raspberry Pi and setting the monitoring mode, run the code below.
```
sudo python3 csi_realTimeAmp.py
or
sudo python3 csi_realTimePhase.py
```

CSI explore
-----

1. Amplitude-PacketIdx
<img src="./asset/ampPck.png" width="400" height="250"/>
   
2. Amplitude-Time
<img src="./asset/ampPlot.png" width="400" height="250"/>

3. Heatmap (Amplitude-Packet)
<img src="./asset/ampPckHeat.png" width="400" height="250"/>

4. Heatmap (Amplitude-Time)
<img src="./asset/ampHeat.png" width="400" height="250"/>

5. Amplitude-SubcarrierIdx (all packet)
<img src="./asset/ampSub.png" width="400" height="250"/>

6. Amplitude-SubcarrierIdx Flow (single antenna set)
<img src="./asset/ampSubFlow.gif" width="400" height="250"/>

Real-Time Amplitude plot
-----
<img src="./asset/realPlot.gif" width="400" height="250"/>

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