Septentrio Aster SBi3 Pro+ GNSS/INS Receiver: Unmanned Underwater Vehicles (UUVs)
High-precision GNSS/INS integrated navigation is essential for unmanned underwater vehicles (UUVs) operating in GNSS-denied environments. The Septentrio AsteRx SBi3 Pro+ combines centimeter-level RTK GNSS with a tactical-grade IMU and deep FUSE+ sensor fusion, enabling accurate surfacing corrections, reliable dead reckoning, and long-endurance autonomous underwater navigation. Its rugged IP68 design, multi-constellation support, and advanced GNSS+ technologies (AIM+, APME+, LOCK+) ensure stable performance in harsh marine conditions, supporting covert operations, underwater surveys, and precise path reproduction.