Multi-Constellation in inertial navigation refers to the use of multiple Global Navigation Satellite Systems (GNSS)—such as GPS (USA), GLONASS (Russia), Galileo (EU), and BeiDou (China)—to enhance positioning accuracy, reliability, and availability, especially in challenging environments like urban areas, mountains, and GNSS-denied zones.
How Multi-Constellation Supports INS?
Improved Satellite Availability – More satellites increase signal redundancy, reducing navigation errors.
Better Positioning Accuracy – Combining signals from multiple GNSS constellations enhances precision and error correction.
Higher Resilience in GNSS-Denied Areas – In case of jamming or interference, the system can switch to alternative constellations.
Applications of Multi-Constellation in INS
✔ Military & Defense – Ensures continuous navigation in contested environments.
✔ Autonomous Vehicles & UAVs – Improves positioning in complex urban and remote areas.
✔ Aerospace & Maritime Navigation – Provides global coverage and redundancy for long-range missions.
Advantages of Multi-Constellation INS
✔ Greater Satellite Visibility – Reduces signal loss in dense urban or forested environments.
✔ Better Navigation Continuity – Minimizes GNSS outages by using multiple sources.
✔ Stronger Anti-Jamming Capabilities – Alternative signals improve resilience against interference.
