CHC Navigation demonstrates how GNSS-INS integration is transforming hydrographic survey operations, delivering the continuous, high-accuracy positioning that conventional GNSS or IMU systems alone cannot achieve.
Survey vessels face constant challenges: rolling waves, obstructed satellite signals under bridges or cliffs, and interference in busy ports, all of which can compromise depth data collected by multibeam echosounders.
GNSS-INS fuses satellite positioning with inertial measurements, providing a seamless navigation solution that bridges signal gaps, compensates for vessel motion in real time, and maintains precise heading for repeatable survey lines. This integration is essential not only for accurate bathymetry but also for efficient survey workflows, reducing re-runs and post-processing time.
A complete GNSS-INS-equipped hydrographic survey system delivers clean bathymetric data through real-time motion compensation and continuous positioning.
CHC Navigation’s solutions, including the APACHE 4 and APACHE 4 Pro USVs paired with HQ-400 multibeam echosounders, showcase the practical advantages of GNSS-INS integration, from motion-compensated depth data to reliable performance in ports, rivers, and vegetated waterways.
For survey operators seeking uninterrupted positioning, cleaner data, and streamlined operations, understanding GNSS-INS integration is critical.
Read What Are the Benefits of GNSS-INS Integration on the CHCNAV website.
