Nostradamus radar system. Position of a plane (by arrow pointer) as detected by Nostradamus,a transhorizon radar system. Nostradamus was developed by the French National Office of Aerospace Study and Research (ONREA). 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 : | 5257 px × 3533 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |