STAP for airborne target detection using a space based phased array radar

The use of a space based radar for the detection of airborne or even ground moving targets offers an important advantage, namely wide area coverage including areas denied to airborne radar. Given a network of satellites this could be continuous world wide coverage. A disadvantage of placing such a radar in space is that it will always be in look down mode and will always have to operate with a high level of clutter. Also its position will be relatively easy to determine making it likely that it will have to operate with a high level of jamming. This paper is concerned with the adaptive array signal processing aspects, that is the rejection of clutter and jamming, of a space based radar for the detection and tracking of airborne targets