The maritime industry demands unwavering reliability in navigation and positioning systems, where even minor disruptions can lead to significant operational risks. In an era increasingly plagued by signal interference and spoofing threats, the Septentrio receiver AsteRx SBi3 Pro+ stands out as a robust resilient GNSS receiver designed to overcome these challenges. This integrated GNSS/INS system delivers centimeter-level positioning and full 3D orientation—heading, pitch, and roll—ensuring continuous performance even in the most demanding sea environments. Unlike standalone modules or boards, this complete receiver unit combines multi-constellation support with advanced inertial sensing, providing a holistic solution for marine vessels, unmanned surface vehicles (USVs), and offshore surveying platforms.
Addressing Maritime Challenges with Anti-Jamming Technology
Maritime operations frequently encounter intentional and unintentional interference, such as GPS jamming or GNSS spoofing, which can compromise navigation safety. The AsteRx SBi3 Pro+ incorporates Septentrio’s proprietary AIM+ technology, an Anti Jamming GNSS feature that actively monitors and mitigates a wide spectrum of interferers—from narrowband signals to pulsed jammers. This capability ensures that the receiver maintains accurate positioning despite the presence of drone jammer devices or other RF disturbances common in congested waterways or near port facilities. As a resilient GNSS board equivalent in durability, this receiver offers peace of mind for captains and operators who cannot afford signal degradation during critical maneuvers or autonomous operations.
High-Accuracy Positioning and Orientation for Marine Tasks
Precision is paramount in applications like hydrographic surveying GPS, channel dredging, or dynamic positioning of ships. The AsteRx SBi3 Pro+ leverages dual-antenna configurations to deliver heading accuracy up to 0.15° in RTK mode, coupled with pitch and roll precision of 0.02°. Its integrated INS enables dead reckoning functionality, allowing the system to bridge short GNSS outages caused by signal blockages—such as when passing under bridges or in heavy weather—without sacrificing accuracy. This makes it an ideal Septentrio resilient GNSS receiver for missions requiring uninterrupted data logs, such as marine mapping or infrastructure inspection. The receiver’s support for multiple GNSS constellations, including GPS, GLONASS, Galileo, and BeiDou, ensures global coverage and redundancy, vital for long-haul voyages.
Built to Withstand Harsh Marine Environments
Durability is non-negotiable in the maritime sector, where equipment is exposed to salt spray, extreme temperatures, and constant vibration. Housed in an IP68-rated enclosure, the AsteRx SBi3 Pro+ meets MIL-STD-810G standards for shock, vibration, and humidity resistance. This rugged design ensures that the Septentrio receiver operates reliably from -30°C to +65°C, making it suitable for deployment on everything from small survey launches to large commercial vessels. Its resilience against environmental stressors complements its electronic robustness, providing a truly resilient GNSS receiver solution for all marine applications.
Streamlined Integration with Rxtools Software
Ease of integration is a hallmark of the AsteRx SBi3 Pro+, facilitated by the companion Rxtools software suite. Rxtools offers a user-friendly web interface for configuring lever arm parameters, monitoring system health, and logging data in real-time. This software simplifies the calibration process between the GNSS/INS system and other onboard sensors—such as sonars or radars—enabling seamless data fusion without requiring deep expertise in sensor synchronization. For maritime integrators, this means reduced setup time and enhanced operational efficiency, allowing them to focus on mission-specific tasks rather than hardware complexities.
Applications in Modern Maritime Operations
The AsteRx SBi3 Pro+ is exceptionally versatile, supporting a range of maritime use cases. In hydrographic surveying GPS, it provides the centimeter-level accuracy needed for detailed seabed mapping and dredging operations. For autonomous USVs, its low-latency INS updates (100 Hz for position, 200 Hz for raw IMU data) ensure responsive navigation and collision avoidance. The receiver’s event markers, with timing accuracy under 20 ns, enable precise synchronization with other marine instruments, facilitating coordinated operations in multi-vessel scenarios. As a Septentrio resilient GNSS receiver, it embodies the reliability required for safe and efficient maritime navigation, even in the face of evolving threats like GNSS jamming or GPS spoofing.
In conclusion, the AsteRx SBi3 Pro+ is more than just a positioning system—it is a comprehensive resilient GNSS receiver tailored to the rigorous demands of the maritime industry. By combining anti-jamming capabilities, high-accuracy INS, environmental ruggedness, and intuitive software, it empowers marine operators to achieve new levels of precision and safety. As the seas become busier and electronic threats grow, this Septentrio receiver offers a future-proof foundation for intelligent maritime navigation.
Summary:
The Septentrio AsteRx SBi3 Pro+ is a resilient GNSS/INS receiver purpose-built for maritime navigation and positioning in interference-prone environments. It combines multi-constellation GNSS with integrated inertial sensing to deliver centimeter-level RTK accuracy and precise heading, pitch, and roll, even during GNSS outages. Featuring AIM+ anti-jamming and anti-spoofing technology, dual-antenna support, dead reckoning via INS, and IP68/MIL-STD-810G ruggedization, the receiver ensures uninterrupted performance in ports, congested waterways, and offshore operations. With seamless integration through Rxtools software and high-rate updates for autonomous and survey vessels, the AsteRx SBi3 Pro+ provides a future-proof navigation foundation for modern maritime applications.
