| AE | Absolute error |
| EMA/EWMA | Exponential (weighted) moving average |
| GPS | Global Positioning System |
| IDE | Integrated Development Environment |
| IMU | Inertial measurement unit |
| IR | Infrared radiation |
| ISM | Industrial, Scientific, and Medical |
| LoS | Line of sight |
| Probability density function | |
| RF | Radio frequency |
| RSSI | Received signal strength indicator |
| SMA | Simple moving average |
| WMA | Weighted moving average |
| X-CTU | XBee Configuration & Test Unit |
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