Air Navigation Service Providers (ANSPs) and airport operators manage a diverse set of surveillance technologies that rely on different physical interfaces and protocols. To ensure seamless integration into ATM operations, effective distribution, conversion, and quality control mechanisms are required. ANSPs and airports typically operate a continuously evolving and heterogeneous set of surveillance sensors, including radar, ADS-B, multilateration (MLAT), video, and UAV-based sensors, each contributing to a comprehensive situational awareness framework.

As surveillance sensors are upgraded or replaced, the Frequentis solution enables seamless data conversion and distribution, ensuring that both legacy and new ATM systems operate in parallel without disruption. Frequentis supports a wide range of physical connections, allowing interoperability across various network infrastructures. Additionally, its dynamic filtering capabilities automatically manage surveillance data flow, resolving potential overload situations by prioritising relevant information and optimising bandwidth usage. SDDS-NG (Surveillance Data Distribution System - Next Generation) is the key component of this scalable and resilient solution, enabling efficient distribution, filtering, and conversion of surveillance data across ATM networks. It ensures high-quality data dissemination with application-aware routing and supports profile- and content-based distribution to align with operational requirements. By providing a future-proof approach to surveillance data management, SDDS-NG enhances interoperability, network efficiency, and overall ATM performance.