MODEL RELEASED. Nostradamus radar system. Philippe Dorey,researcher at the National Office of Aerospace Study and Research (ONERA) in France,pointing out the position of a plane detected by Nostradamus,a transhorizon radar system. The system is composed of 288 conical antennae,positioned over three 400 metre-long branches. The transmission and reception components are buried underneath the system. Nostradamus is capable of detecting aircraft flying 700-2000 kilometres away. The system uses low frequency waves (6-30 MHz),which bounce off the ionosphere (outer layer of the Earth's atmosphere) and allow the radar to detect targets beyond the horizon | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Psaila, Philippe |
Taille de l’image : | 5299 px × 3509 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |