NTNPositioning | Positionnement Précis par Point (PPP) et Corrections RTK par Satellite
NTNPositioning diffuse des corrections PPP mondiales par satellite en bandes L et S: précision centimétrique instantanée pour agriculture autonome et robotique.
NTNPositioning Global PPP-RTK Correction Distribution Matrix
Generating global satellite clock, orbit, and ionospheric delay streams delivered over geostationary beams
Central System: Global GNSS Tracking Network - 200+ worldwide atomic reference stations
Network Nodes
- Global GNSS Tracking Network
- PPP Correction Processing Core
- L-Band / S-Band Satellite Uplink
- Autonomous Field Rover
Architectural Protocol Layers
- Spaceborne PHY/MAC Layer (3GPP Rel-17 TS 38.300): Doppler compensation, HARQ disabling, and timing advance extension.
- Orbital Mesh Routing (CCSDS / Delay-Tolerant Networking): Dynamic topology routing over intermittent laser crosslinks.
- Regenerative Core Processing (OpenRAN / 3GPP CU-DU Split): Onboard user plane function (UPF) local breakout.
Key Metrics: < 18ms (LEO Orbit-to-Ground Roundtrip) | 100 Gbps (Optical Crosslink Throughput) | ±48 kHz (Doppler Shift Compensation) | 99.999% (Orbital Constellation Availability)
Positionnement Précis par Satellite (PPP), Corrections RTK & Précision Centimétrique
Core Engineering Areas
- Fast-Convergence PPP-RTK Algorithms — Combining global PPP clock corrections with regional ionospheric models to slash positioning convergence times from 20 minutes to under 30 seconds.
- RTCM State-Space Representation (SSR) — Standardized broadcast encoding decoupling individual error components (orbit, clock, bias) for efficient satellite distribution.
- Off-Grid Heavy Industrial Autonomy — Enabling autonomous tractors, combine harvesters, and open-pit mining dump trucks to operate with centimeter accuracy without local cellular towers.
Technical Articles
Related Cluster Architecture Specifications
- NonTerrestrialNetwork — 3GPP 5G/6G NTN Satellite Architecture, Direct-to-Cell & Non-Terrestrial Infrastructure
- NonTerrestrialNetworks — Multi-Orbit Heterogeneous Constellation Interworking (LEO / MEO / GEO / HAPS)
- AirspaceSync — Doppler Compensation, Relativistic Timing & Airspace-Space Synchronization
- FSOComm — Free Space Optics, High-Bandwidth Space Laser Communications & Atmospheric Mitigation