for use in hydrographic applications. Navsight comes as a motion reference Left: The STIM202 is a shock-capa-unit (MRU), providing roll, pitch, and ble, tactical-grade, ultra-high-per-heave, or as a full navigation solution formance MEMS gyro module de-with embedded tri-frequency receiver, signed for operation in high-shock or using an external GNSS receiver. The environments. Navsight product range includes Nav-sight Ekinox Marine, a lightweight and Below: SATEL’s radio networking easy-to-set system for portable sonar technology based solutions are de-systems, highly suited for shallow-water signed to enable secure, mission-applications and is available as an MRU, critical connections in a range of as an INS with embedded GNSS, and as maritime applications. an INS using the customer’s own GNSS Image: Sensonorreceiver. The IMU enclosure could be used as a surface version (IP68) or a wa-terproof one to a depth of 100 meters.Navsight Apogee Marine is a highly versatile Navsight grade that delivers the best performance under GNSS outages, making it highly suitable for challeng-ing shallow to deepwater applications. It consists of an Apogee grade Inertial Measurement Unit and is connected to Navsight, a rugged processing unit em-bedding the fusion intelligence and the optional GNSS receiver. Con? guration is designed to be easy through an intui-tive web interface and the 3D view helps the user check mechanical installation, sensor position, alignments, and lever arms. Navsight Marine Horizon Grade uses an FOG-based IMU and enables the Navsight system to be used in the most demanding environments such as highly dense areas, low dynamic sur-veys, and applications where only a sin-gle antenna can be used. Horizon IMU is based on a closed-loop FOG technol-ogy that enables ultra-low bias and noise levels while allowing robust and consis-tent performance in harsh conditions. Particular applications include use in USVs, ship motion monitoring and hy-drography.Gyro and IMU systemsIn 2009, Sensonor was split from In-? neon in an MBO supported by local investors to focus on MEMS-based sen-sors, aiming at applications and markets requiring high-precision sensors with a special focus on inertial systems (gyro Image: SATELwww.marinetechnologynews.comMarine Technology Reporter 55MTR #4 (50-63).indd 55 4/26/2019 10:01:43 AM