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Inertial-aided GNSS for DP vessels

Veripos has introduced a new inertially-aided solution for dynamically positioned vessels combining GNSS positioning technology with inertial measurements, called Verify Axiom.

Developed in association with Sonardyne International and featuring integration of Veripos GNSS and Sonardyne inertial technologies, Verify Axiom combines the characteristics of GNSS positioning with the continuous availability and rapid update rates of inertial sensors.

This process aims to minimise the effects of any GNSS disruptions typically caused by ionospheric irregularities and physical obstructions while detecting position outliers due to common mode failures which can otherwise affect vessel systems.

The core component of Verify Axiom is Sonardyne’s IMO-approved Lodestar Attitude and Heading Reference System (AHRS) and Inertial Navigation System (INS), which offers position, velocity and attitude in dynamic conditions without any need for external support inputs or vessel manoeuvres.

Veripos’s GNSS positioning capabilities add to Lodestar’s inertial sensor outputs, which are combined to compute position. Input of GNSS observation data should help to correct any potential degradation over time in the inertial position solution.

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