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flag Xsens releases free firmware update for marine IMUs, enabling sub-5 cm real-time vertical accuracy without hardware changes.

flag Xsens has released a free firmware update for its Sirius and Avior inertial measurement units, enabling sub-5 cm real-time vertical motion accuracy for marine applications. flag The upgrade provides centimetre-level heave measurement up to 100Hz, supporting wave periods up to 40 seconds with onboard processing and no external systems needed. flag It includes phase correction, bias estimation, and support for reference points like Center of Rotation and Point of Interest. flag The feature is available immediately via software, requires no hardware changes, and works across RS-422, CAN, and UART interfaces. flag Both rugged, IP68-rated units meet CE, FCC, and RoHS standards, and are supported by SDKs for C/C++, Python, ROS1, ROS2, and MATLAB.

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