ASV Equipped with Multibeam Echosounder

Surveying Solution Developed by Cadden

Our partner Cadden held its new R2D3 conference, dedicated to the latest progress in the Representation of Reality in 3 Dimensions, on June 27th, 2019.

On this occasion, they conducted an autonomous bathymetric survey of the Loire river in Nantes, France.

As the French representative for OceanAlpha, they equipped a SL40 Autonomous Survey Boat with a R2Sonic 2020 Multibeam Echosounder and SBG’s Ekinox2-D RTK.

Cadden then presented the survey demonstration and its solution scheme at the event.

Fully Equipped for Bathymetry

For multibeam bathymetry, Cadden has chosen the OceanAlpha SL40 which is a 1.6-meter-long waterjet Unmanned Surface Vehicle (USV). Payload goes up to 15 kg of survey instruments, which makes it the ideal surveying platform for smaller-sized multibeam echo sounder.

The solution brought by Cadden integrates:

• A R2Sonic 2020 MBES, convenient for shallow water hydrographic surveys
• A Valeport Mini SVS for higher survey accuracy
• The very compact Ekinox2-D Dual Antenna Inertial Navigation System from SBG Systems. This Survey-grade IMU has an RTK Heading GNSS receiver embedded, which provides a position accuracy to the centimeter.
  Data from this inertial sensor is also post-processed with SBG’s Post-Processing software: Qinertia.
• An AML Oceanographic Base-X2
• A QPS Qinsy and Qimera
• A Velodyne Lidar, Inc. VLP16

Check out the demonstration results !