---
title: "Glossary"
canonical: "https://support.cordel.ai/space/CSD/1487667702/Glossary"
format: markdown
---
> ℹ️ This article provides definitions for commonly used terms and acronyms used in the Cordel Web Portal.


| **Term** | **Description** |
| --- | --- |
| LiDAR | Light Detection and Ranging<br>Laser imaging, detection, and ranging |
| IMU | Inertial Measurement Unit |
| GPS | Global Positioning System |
| GNSS | Global Navigation Satellite System |
| RTK | Real Time Kinematic |
| Dataset | Dataset refers to the collection of files captured by the Cordel hardware:<br>- lidarmeta → configuration file for the dataset
- *.lidar → data captured by lidar sensor
- *.anpp → data captured by IMU/GPS system
- lidar.cali → calibration file for the Nextcore hardware unit |
| Las/Laz output file | The LAS (LASer) format is a file format designed for the interchange and archiving of lidar point cloud data<br>The LAZ format is the compressed version that significantly reduces file size |