Multisensor Horizontal Trajectory Reconstruction on SASS-C VERIFication System
Year: 2026
Type: conference-paper
Abstract: Trajectory reconstruction is a critical component in the performance assessment of surveillance systems within Air Traffic Control (ATC). This paper presents an enhanced trajectory reconstruction methodology implemented in the VERIFication system, developed by the Surveillance Analysis Support System for ATC Centres (SASS-C) at EUROCONTROL. The system processes and evaluates surveillance data from multiple heterogeneous sources, including primary (PSR) and secondary (SSR) radar, Multilateration (MLAT), and Automatic Dependent Surveillance-Broadcast (ADS-B). The proposal of this paper is to evaluate different enhancements to improve the accuracy, continuity, and robustness of reconstructed trajectories. Addressing real-data challenges such as asynchronous measurements, varying update rates, and sensor-specific uncertainties. At the same time, due to specific off-line behaviour of VERIFication system, advanced data fusion and prefiltering techniques are introduced to better integrate multi-sensor inputs and mitigate inconsistencies across sources. The performance of the improved reconstruction algorithm is assessed using both representative operational scenarios and controlled simulations of trajectories. Results aim for an enhancement in trajectory precision and stability compared to baseline methods, leading to more reliable sensor performance evaluation. These improvements contribute to more accurate validation and monitoring of surveillance systems, supporting safer and more efficient air traffic management operations.
Institutions: Eurocontrol, Eurocontrol, Universidad Carlos III de Madrid
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7203712784