GMV GSharp®

GMV GSharp® is a patented, high-precision, reliable, and secure positioning solution developed and operated by GMV, leveraging over 30 years of experience in GNSS. It is designed to meet diverse end-user requirements, from high-precision GNSS applications to those where safety is paramount. The solution provides users with maximum precision for determining their position or trajectory.

Key features include personalized engineering support, ensuring the service adapts to user needs and continuous evolution based on customer feedback. GMV GSharp® boasts extremely high reliability, with real-time monitoring and a Secure Correction Service (SCS) that includes a supervision layer for status information, CORS statistics, GNSS correction calculations, and integrity processing. Security is a core aspect, with continuous monitoring by GMV’s CERT team, constant system log supervision, and regular black-box and white-box penetration tests.

The solution offers cutting-edge performance, benefiting from GMV’s extensive knowledge of GNSS constellations and its deep involvement in the Galileo program. GMV is the only private company with a real-time IGS analysis center, making its solution a benchmark for GNSS constellation performance. The positioning engine has been tested in extreme conditions by both GMV engineers and clients, with continuous improvements to maximize end-user performance.

The GMV GSharp® solution comprises three main elements:
1. **Secure Correction Service (SCS):** Calculates satellite orbits, clocks, signal group delays, ionospheric corrections, and integrity information. It offers flexibility in correction rates, constellations, formats, and security. Access is available via NTRIP Caster, Apache Kafka, MQTT, among others. It operates from two redundant processing centers in the US and EU, providing 24/7 high availability from Tier-3/Tier+3 data centers. The integrity layer software is developed according to ISO26262 and ISO21448 standards.
2. **Secure Positioning Engine (SPE):** An on-board element that processes GNSS information from navigation receivers, IMUs, other sensors, and correction services. It provides position, velocity, attitude, integrity level, and safety area size. The SPE monitors security integrity, validates incoming data, and discards compromising measurements. It is designed according to ISO26262 for ASIL-B and ISO21448 SOTIF, with a security process including Threat Analysis and Risk Assessment (TARA) to define security and cybersecurity requirements. The software is optimized for lightweight processing and has been successfully migrated to multiple user platforms.
3. **Global GNSS Station Network (GGSN):** A worldwide reference network owned and operated by GMV, ensuring continuous monitoring of GNSS satellites from at least four reference stations at all times. Measurements are sent at 1 Hz in RTCM and binary formats to GMV’s operation centers for real-time processing and analysis. The network includes 40 multi-GNSS reference stations with triple redundancy, four of which use atomic clocks. All stations have independent security layers and specific measures for critical safety applications.

GMV GSharp® is tailored for various sectors:
* **LEO Missions:** Provides precise GNSS products with minimal latency, configurable sampling frequency, duration, and update rate. Supports standard formats for easy integration with orbit determination engines and provides NavBit information for radio occultation missions.
* **Precision Agriculture:** Offers PPP-RTK corrections for all GNSS constellations and frequencies, maximizing interoperability with different positioning engines.
* **Automotive Sector:** Provides PPP-RTK corrections with an integrity layer and an integrated positioning engine compliant with ISO26262 and ISO/PAS 21448 (SOTIF) standards, achieving integrity levels up to 10-7/h for autonomous driving.
* **Unmanned Aerial Vehicles and Robotics:** Combines PPP-RTK corrections with OSR messages compatible with common RTK positioning engines. The positioning engine is optimized for lightweight deployment with minimal computational and power consumption requirements.
* **Maritime and Offshore Missions:** Maximizes service coverage by providing GNSS orbit and clock corrections, plus global ionospheric corrections for faster convergence without regional stations. Operates via satellite communications to overcome local restrictions.
* **Industrial Machinery:** Optimizes end-user performance in adverse, low-dynamic conditions like open-pit mining, with configurations tailored to specific environmental characteristics.