SIREV (Sector Imaging Radar for Enhanced Vision) is an innovative radar system which has the potential to supply high quality radar images of a sector in front of the aircraft. Besides a map of the earths surface in flight direction, the image can be further processed to supply additional information about the topography and objects in the field of view. The sensor can be used in almost every kind of weather condition and due to its active illumination the operation is independent of daylight. SIREV is suitable for aircrafts as well as helicopters and allows the pilot even at very low visibility conditions to roll, to take off, to approach the targeted area, to detect obstacles, and to land safely.