NORBIT iLiDAR

A marine mobile laser scanner that complements underwater multibeam data with an above-water point cloud. Hardware time synchronisation and connection through the sonar interface unit support a coordinated survey of shorelines, quay walls, bridges and other exposed structures.

Connect above-water and underwater geometry

iLiDAR adds an above-water point cloud to multibeam surveys, helping model visible parts of quay walls, shore slopes and bridges. Power and time synchronisation through the sonar interface unit support data acquisition in a common coordinate system. Line of sight, surface reflectivity and platform motion affect coverage. The quoted 2 cm sensor accuracy is not the overall accuracy of the final georeferenced point cloud.

Applications and survey workflow

The above-water point cloud can describe embankments, quay faces and bridge clearance alongside the bathymetric survey. Line of sight and surface reflectivity influence which features can be measured.

Before mobilisation, the survey team defines the coordinate system, vertical reference and required deliverables. Mounting geometry, sensor offsets and time synchronisation are checked as one installation. Positioning quality, vessel motion and sound-speed conditions are reviewed during acquisition so that the final dataset can be assessed against the project specification.

Integration and deliverables

The selected hardware and software configuration determines the available outputs and interfaces. A practical workflow includes installation checks, a trial line, field quality control and documented processing. Depending on the sensor, deliverables may include a bathymetric surface, an inspection image, a point cloud or an interpreted sediment profile. Kordil can evaluate the platform, operating environment and intended use when defining the system configuration.

Technical specifications

Point rate	Up to 300,000 points per second
Field of view	Horizontal 360°; vertical 30°
Range	100 m
Sensor accuracy	2 cm
Frame rate	5–20 Hz; default 10 Hz
Laser	905 nm; Class 1
Weight	2.4 kg
Power / supply	Typical 8 W; 10–29 VDC; powered through the SIU

Specifications follow the original manufacturer brochure PS-150008-4. Acoustic range is distinct from housing depth rating. Options and operating conditions affect achievable performance.

Technical brochure

NORBIT iLiDAR original technical brochure — English PDF (PS-150008-4)