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Geomatics & UAV

AWSE operates a microdrone UAV platform with LiDAR, GNSS + IMU direct georeferencing and 42/100 MP cameras — from mission planning to processing and visualisation.

Microdrone UAV platform equipped with LiDAR sensor and high-resolution camera in flight
Microdrone UAV platform equipped with LiDAR sensor, GNSS + IMU and high-resolution camera.

Services delivered

  • Corridor mapping for roads, transmission mains and pipelines
  • Mining and quarry volume computation
  • Construction progress monitoring
  • Environmental change detection (time series)
  • Forestry, contour mapping and earthworks
  • Highway and railway alignment support

Indoor geomatics services for AWSE Engineering

With the fast-growing development of AWSE Engineering activities, it was appropriate to have indoor geomatics services. AWSE decided to acquire drones / UAV (Unmanned Aerial Vehicle) equipped with proficient tools for many geomatics applications.

Sensor payloads

The UAV carries a LiDAR (Light Detection And Ranging) sensor, a GNSS (Global Navigation Satellite System) receiver coupled with an IMU (Inertial Measurement Unit) for Direct Georeferencing (DG), and a high-resolution camera to capture the imagery required by the mission.

Direct Georeferencing (DG)

Direct Georeferencing is the ability to directly geolocate sensor data from the air to the ground with respect to a reference coordinate system. At its core, DG combines GNSS and inertial technology to produce a robust position and orientation solution — a true revolution for georeferencing LiDAR and for aerial photogrammetry in high-accuracy mapping.

Data processing modules

A structured chain of processing modules turns raw sensor data into survey-grade deliverables — from trajectory to colorised point clouds and final maps.

Data processing modules — trajectory processing, georeferencing, boresight calibration, strip adjustment, precision enhancement, point cloud direct colorization and FORMap
End-to-end data processing chain: trajectory processing, georeferencing, boresight calibration, strip adjustment, precision enhancement, point cloud direct colorization and FORMap.

LiDAR scan pattern

The scan pattern of the airborne LiDAR sensor produces a dense, homogeneous coverage of the ground — the geometric basis for high-accuracy point clouds and derived terrain models.

LiDAR scan pattern — dense red and blue laser return points across a 70 by 100 metre swath
LiDAR scan pattern (swath coverage in metres) — dense, homogeneous ground sampling used to build survey-grade point clouds.
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