In a significant step towards establishing comprehensive communication, navigation and surveillance data services for European aviation, the SESAR JU CNS DSP project successfully completed its ambitious validation campaign throughout 2025. Spanning from April to December, these seven exercises demonstrated the technological maturity and operational readiness of three groundbreaking solutions designed to transform how surveillance, navigation, and communication data are delivered across the continent.
The validation campaign addressed three innovative technological solutions: Multisensor surveillance tracking platform (Solution 0464), (ATM data service provider (Solution 0465), and real-time GNSS monitoring and interference (Solution 0466). Together, these solutions establish the foundation for a centralised, cloud-based platform that provides CNS data services to aviation stakeholders, supporting the Digital European Sky vision and the transition to service-based ATM infrastructure.
Multisensor surveillance tracking platform (#0464)
The validation focused on demonstrating the platform’s capability to consolidate and deliver surveillance data across large geographical areas. Two exercises validated both the provider and consumer sides of this innovative service model.
TVAL.01.0 – Surveillance data service provider: took place on 16-17 April 2025, marking the project’s first validation milestone. The exercise successfully demonstrated the CNS DSP platform’s ability to ingest surveillance data from multiple external partners using secure web service technologies. Real-time data from DSNA and Polish Air Navigation Services Agency (PANSA) flowed seamlessly through the system, with ASTERIX messages successfully received and decoded. The validation confirmed the platform’s capacity to process data from multiple sources simultaneously. This exercise proved the critical foundation for scaling surveillance data provision across Europe.
TVAL.03.0 – Surveillance data service consumer: validated the platform’s surveillance data fusion capabilities and CAT062 data exposition. Conducted on 12 December 2025, this exercise demonstrated the fusion algorithm’s ability to create a single consolidated surveillance information from diverse surveillance messages including ADS-B, radar, and CAT062 across cross-border areas. Platform monitoring validated service availability, connection status, data volumes, network speed, user access patterns, successful request rates, latency, and update rates. The exercise successfully proved the platform’s capability to serve fused surveillance data to external ATM components in real-time through secure APIs.
TVAL.01.0: Composite view of the data received from DSNA and Polish Air Navigation Services Agency (PANSA) during the exercise. It shows the total number of ASTERIX messages that were successfully received and decoded by CNS DSP — either combined or broken down by category (each in its own colour).
ATM data service provider (#0465)
Three distinct exercises validated Solution 0465’s comprehensive ATM data service capabilities, demonstrating both tactical real-time services and post-operational analysis functions.
TVAL.02.0 – Surveillance for Trajectory Prediction: was conducted on 26-27 May 2025, showcasing the platform’s ability to provide surveillance data to external ATM components in real-time. The exercise captured stunning results over Poland, with PANSA data flowing through the tracker system. The validation confirmed the system’s capability to perform real-time track data aggregation feeding an external trajectory predictor module in continuous mode, including periodic trajectory updates. This exercise proved the platform’s value for supporting ATFCM and AMAN systems with accurate, timely surveillance data.
TVAL.07.0 – Green KPI from Historical Data: was executed on 15-16 October 2025, demonstrating post-operational capabilities. This exercise validated the platform’s ability to store and retrieve historical surveillance and flight data for environmental impact analysis. External users successfully accessed the data lake using credentials and specific access rights to generate CO2 emission KPIs for designated airspace regions and time periods. The validation proved the platform’s capacity to support climate impact assessment through higher-resolution ANSP data, demonstrating comprehensive post-operational analysis capabilities. Success criteria included functional historical data pipelines, secured access based on user rights, segregated data management, and the ability to access significant amounts of trajectory data within specified timeframes for environmental assessments.
TVAL.08.0 – Surveillance ADSP in triangle architecture: represented a landmark joint exercise with the VITACY project on October 7, 2025. Conducted at DSNA’s premises in Toulouse, this validation demonstrated the disaggregation of ATM services across three distributed locations: DSNA’s facilities simulating Marseille ACC and Lyon airport, Thales cloud hosting AMAN services, and another Thales cloud providing surveillance data from CNS DSP. The exercise successfully validated both nominal and degraded modes, proving the resilience of virtualized ATM services in complex operational environments. The CNS DSP platform delivered the surveillance ATM Data Service Provider while VITACY’s Thales team provided the AMAN service, with all components communicating through APIs and SWIM interfaces. This validation also assessed the ATSEP role in collaboration with PANSA and ESSP, demonstrating that the CNS-DSP platform provides enhanced centralized monitoring tools and comprehensive dashboards.
TVAL.02.0: Resulting air situation over Poland, with data coming from the Polish Air Navigation Services Agency (PANSA) through our tracker.
🟩 Green planes: tracks correlated with data from the Eurocontrol NM
⬜ White planes: plain tracks
🟧Orange lines: flight plans
🟦 Blue points: tracks used by the predictor to calculate the correct flight plan
Real-time GNSS monitoring and interference detection (#0466)
The Italian partnership of ENAV, IDS AirNav, and Telespazio conducted two critical validation exercises from September 22-26, 2025, at IDS AirNav headquarters, validating technological solutions for GNSS monitoring services.
TVAL.05.0 – GNSS Operational Status Monitoring: validated comprehensive monitoring services assessing operational status, integrity, and accuracy across different flight phases: en-route, terminal area (TMA), and airport operations. The exercise demonstrated successful aggregation of data from GNSS sentinels and ADS-B streams to provide real-time GNSS performance and interference information. The system successfully identified areas with degraded signals and correlated them with potential RFI sources, proving the platform’s capability to support operational decision-making regarding GNSS reliability across all phases of flight.
TVAL.06.0 – ARAIM Service Validation: focused on the Advanced Receiver Autonomous Integrity Monitoring service, which predicts and estimates GNSS integrity by computing protection levels based on satellite constellation geometry, visibility, and signal quality. Three scenarios were tested: nominal conditions, degraded scenarios, and failure conditions when GNSS information is insufficient. The validation successfully demonstrated enhanced navigation resilience in complex operational environments, proving that the ARAIM service can maintain integrity predictions even during challenging constellation geometries or signal degradations.
TVAL.05.0 and TVAL.06.0: The Italian partnership’s team during the validation exercises for Solution 466.
Achieving technological maturity
The comprehensive validation campaign successfully demonstrated the advancement of these solutions from their initial Technology Readiness Levels to TRL6-TRL7, proving their readiness for operational deployment. Through over 8 months of intensive preparation, execution, and analysis, the CNS DSP consortium validated key performance aspects including accuracy, security, service authentication, API functionality, and data fusion capabilities.
The validation exercises employed sophisticated techniques including real-time simulation, live shadow mode, and platform demonstrations across multiple European locations. The exercises involved real operational data from multiple ANSPs including DSNA, PANSA and ENAV, ensuring the validation occurred in representative operational environments. Monitoring dashboards tracked connection status, data volumes, network performance, user access patterns, latency, update rates, and service reliability throughout all exercises.
Building the foundation for future ATM data services
The CNS DSP validation campaign marks a pivotal achievement in establishing the technological foundation for the Digital European Sky. By successfully demonstrating a centralized platform capable of providing multiple real-time and offline CNS data services, the project advances the vision of service-based ATM infrastructure. The platform acts as a “one-stop shop” for end users to access needed data services, accelerating market uptake and supporting new service distribution models.
The exercises proved the platform’s capability to support cross-border surveillance consolidation, real-time trajectory prediction services, environmental impact assessment, and virtual centre operations, all while maintaining stringent security, performance, and reliability requirements.
The successful collaboration with the VITACY project during TVAL.08.0 demonstrated the interoperability and integration potential of these innovative solutions within the broader European ATM ecosystem. This milestone validates not only the technical capabilities of the CNS DSP platform but also its strategic alignment with the collaborative, service-oriented future of European aviation.
As the project moves toward completion in 2026, the validation results provide strong evidence for the viability of the ADSP (ATM Data Service Provider) concept and establish a clear pathway toward operational deployment in support of SESAR 3 objectives and the Digital European Sky Blueprint.
