The new ONERA multispectral airborne SAR system in 2009

This paper provides an overview of the new airborne SAR system developed by the French Aerospace Lab ONERA over the last three years. This system, called SETHI, was developed according to the standard FAR25 applied to civil application. The main improvement compared to the previous ONERA airborne radar system RAMSES is that the antennas are located in two pods compatible with small aircrafts like the Falcon 20. This pod-based configuration allows the easy integration of any kind of payloads under the single certification of the pods by authorities.