PTMI recently purchased a Leica dual head DragonEye airborne LiDAR sensor. This state-of-the-art sensor has a dual laser system capable of capturing up to 1mHz of LiDAR data while simultaneously capturing 80mp 4-band imagery.

The advantage of this sensor is the ability to convert into a Leica Chiroptera which gives PTMI capacity to capture LiDAR bathymetry. This flexibility is the first to be based in SE Asia to enable PTMI to capture LiDAR data on land and into the oceans.

The Chiroptera II is part of Leica’s modular sensor design.  The addition of a deep 10 kHz bathymetric channel creates a HawkEye III system.  Alternatively, a second red laser can replace the shallow green channel to allow the sensor to be operated as a 1 MHz topographic lidar.  GDS has the ability to operate all of these configurations.

Advantages from PTMI technologies and knowhow provide:

  • topo and bathy systems are separate units – each is optimized for its specific task
  • Elliptical scan pattern – provides multiple look angles in a single pass and eliminates shadowing effects
  • Automatic land/water discrimination for the bathymetric data – allows auto-refraction of underwater data; simplifies processing of narrower streams and drainage channels.
  • Accurate water surface calculation – sloping water surfaces are handled correctly.
  • Seamless land-water coverage – accurate reliable depths in the traditionally difficult area of 0-2m depth range.

Our highly technical personnel can process data from all sensors within these systems, providing a one-stop-shop for your project needs.

GDS has a great deal of experience merging bathymetric and topographic datasets on to a single vertical datum (tidal, orthometric or ellipsoid) to provide a seamless dataset which can then be used for coastal modeling.

We are always reviewing the latest technology and software, to ensure we are using the most efficient process possible.


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