Trust-Adaptive Multi-Diagnostic Weighting for Magnetically Confined Plasma State Estimation

Magnetically confined plasma experiments rely on heterogeneous diagnostic systems to estimate equilibrium and profile quantities in real time. Magnetic probes, interferometry, reflectometry, and soft X-ray arrays provide complementary but imperfect measurements of coupled plasma states. These diagnostics are subject to calibration drift, bandwidth limitations, and transient corruption during events such as edge-localized modes (ELMs), radiation spikes, and disruptions. Conventional reconstruction pipelines typically employ fixed weighting, static covariance tuning, or heuristic rejection thresholds. Such approaches can exhibit degraded robustness during fast transients or when individual diagnostics experience…