Airborne Laser Scanning
Airborne laser scanning (LiDAR) is a rapid, highly accurate and efficient technology for the geometric mapping of the earth's surface.
- Outstanding pulse repetition rate of 480 kHz
- Full waveform analysis for unlimited number of target echoes
- Wide scan field of view up to 60°
- Parallel scan lines
The high data rate and accuracy of the Riegl laser scanners is duplicated by using two of them in the belly pod. In combination with the DA42 MPP, a superior measurement system for wide area flights as well as corridor flights is deployed.
Our strengths include:
- High point density - up to 16 points/mē
- Rapid data processing
- High availability and flexibility
- Corridor flights
- Flights in mountainous terrain
Airborne laser scanning products are used for:
- Risk management for disaster managers
- Planning criteria for infrastructure projects
- Avalanche, landslide and rockslide simulations
- Production of nationwide/state-wide elevation models
- Detection of change and alteration of topographic data sets
- Flood scenarios
- Automated compilation of orthophotos and aerial images
- Power line maintenance
- Dam measurement
- Forestry management
- 3D city models, urban planning
- and many other applications.
Mode of operation:
Mounted on an aircraft, the sensor emits a high frequency laser beam towards the earth at a very high repetition rate of hundreds of thousands of measurements per second, each of which hits the target surface and reflects a small portion of its energy back to the sensor. A receiver in the sensor detects the reflected laser pulses from the earth's surface or from objects on the surface.
To make the laser scanner data spatially relevant, an inertial navigations system (INS) and a high-precision global positioning system antenna (dGPS) are mounted on the aircraft.
The INS measures the attitude and the orientation of the laser scanner system, while the position of the laser scanner system is determined using the dGPS.
After the flight, the data are processed using specially designed computer software. The end products are high-precision digital terrain models (DTM) and digital surface models (DSM) with an accuracy better than 10 cm vertically by 25 cm horizontally.


