"The project aims to improve the detection of manned and unmanned platforms by exploiting the treatment of more accurate information of cooperative as well as non-cooperative flying objects, in order to identify potentially threats. The scope will be reached by managing the 3D position data in region including extended border lines and large areas, 24 hours a day and in all weather conditions, derived from enhanced existing Primary Surveillance Radar (PSR), together whit conventional data and information coming via various passive radar technique in order to extend the airspace coverage and to enhance the target recognition capability of the surveillance systems. Thus, the security could be enhanced in large areas, at sustainable costs, by improving the recognition of non-cooperative target through more accurate information on it’s characteristics and/or more accurate positioning. The final objective of the research consists of study, design and realization of a simple demonstrator of a low cost, interoperable, radar based, system able to identify, all kinds of non-cooperative threat with the contribution of data coming from: - an innovative three-dimensional PSR - conventional sensors (Primary radar, Secondary radar, ADBS, etc…) - a network composed by a multitude of multi-operational passive, bistatic and high resolution radar. The system core will performs mainly an opportune Fusion of the such data and an accurate control of Consistency enhancing the early warning alerts capacities of final user based on a detailed 3D map of the area under surveillance with additional information on the nature of the target and on the alert level selected considering the track, the direction and a trajectory prediction of the target performed by the included Decision Support module."