GNSS SSR Corrections - HAPS and UAVs
Centimetre-level precision without a local base, fast convergence and high availability. Distribution of corrections in State-Space Representation (SSR) via HAPS, secure IP and satellite.
Centimetre-level precision
2-4 cm horizontal | 4-8 cm vertical
Ultra-fast convergence
≤60 seconds in optimal conditions
Reinforced resilience
≥99.9% availability with multi-system backup
* Depending on constellations, PDOP and RF environment.
Extended coverage
HAPS provides regional coverage without the need for extensive ground infrastructure.
Multi-system resilience
Automatic switching between HAPS, terrestrial IP and satellite for maximum availability.
Optimised performance
Advanced algorithms for fast convergence and consistent precision across diverse environments.
No local base network
Centimetre-level precision with SSR without the need for nearby reference stations.
Full mobility
On-the-move convergence for HAPS, UAS, precision agriculture and linear construction.
Reinforced resilience
HAPS broadcast with IP/4G/5G and L-band/Ku backups for maximum availability.
Supervised integrity
Quality alarms and live indicators for critical applications.
Full interoperability
Support for NTRIP/RTCM, SPARTN and secure APIs for easy integration.
Our system generates SSR corrections (orbits, clocks and biases) distributed through multiple channels for fusion in the multi-band rover, enabling an accurate and reliable PPP-RTK solution.
SSR correction generation
Processing of data from multiple GNSS sources and constellations
Multimodal distribution
Transmission via HAPS (primary), IP/4G/5G and satellite (backup)
Reception and processing
Fusion of corrections in the rover for a high-precision PPP-RTK solution
Horizontal precision
2–4 cm (CEP50)
Open environment | Multi-constellation
Vertical precision
4–8 cm (CEP50)
Open environment | Multi-constellation
Initial convergence
10–60 s
Depending on constellations and PDOP
Injection latency
< 1 s
HAPS/IP within coverage area
Availability
≥ 99.9 %
HAPS↔IP↔SAT switching
Integrity · Continuous monitoring (metrics and alarms)
Indicative values. We publish test results per use case (method, logs and metrics).
Surveying and civil works
Mobile platforms and linear construction
Machine auto-guidance and control
Deformation monitoring
Precision agriculture
Centimetre-level navigation
Variable rate and geofences
Auto-guidance for sowing and harvesting
HAPS/UAS/UAM and emergencies
BVLOS, precise landings
Continuity in adverse scenarios
Navigation in urban environments
≤60 s
Convergence
~3 cm
Horizontal RMS
< 1 s
SSR latency
≥99.9%
Availability
Our team of engineers is available to assess your specific needs and design a tailored solution.
KPIs agreed by contract according to scope, RF environment and available connectivity.