Page 3: of Marine Technology Magazine (November 2024)

The Next-generation INS/GNSS

Post-processing Software

Quality: Green -> centimetric position; Blue -> decimetric < 30cms; Red -> Raw GNSS data

SURVEYING UNDER BRIDGES MADE EASY

This survey has been done with an APOGEE INS under very challenging conditions for the GNSS receiver (red dots).

The boat is crossing multiple times three large bridges including one made of steel.

With Qinertia and its unique 100% in-house GNSS/INS tightly coupled forward / backward processing, data collected under the bridges are fully exploitable (blue / green trajectory).

Altitude – Left GNSS only, Right: Post-processed

Long GNSS Outages Handling The Fastest PPK Software Easy & Powerful Exporter

Log duration: 2h15 Example: up to 80 seconds Easy export to third party

Processing Time: < 2 mins 95% positions < 2 cms software (SBET/ ASCII)

Max error < 30 cms

Many thanks to Hydro Systems Development (HSD Japan) for their kind collaboration.

www.sbg-systems.com

MTR #8 (1-17).indd 3 11/12/2024 11:51:11 AM