eVLBI
eVLBI (electronic Very Long Baseline Interferometry) is a technique that allows radio telescopes around the world to cooperate as a single, Earth‑sized aperture by transmitting data in real time via high‑speed networks to a central processing centre. Unlike traditional VLBI, where recorded data are shipped on physical media, eVLBI streams raw telescope data over fibre or satellite links, enabling near‑instantaneous correlation and imaging. This greatly reduces the time between observation and scientific output.
The concept was first demonstrated in the late 1990s, when several European telescopes participated in a “pilot”
Key technical developments for eVLBI include the deployment of high‑capacity fibre links (often exceeding 10 Gbps)
eVLBI has enabled several scientific milestones, such as rapid response observations of transient phenomena, high‑resolution imaging