This thesis presents design and implement a UWB 3-D real time locating system for real time augmented reality applications to be applied in TV studios and begins presenting the state of art of RTLS taking special care in UWB. The UWB-based Localization System is formed by the Anchors and the Tags. They will be exchanging ranging messages between them to let the tags estimate their position based on a coordinate system. In this thesis, the number of test points is twenty-five and Localization system will be based on indoor area in which 8 anchors are disposed to range with up to three tags that are programmed to work.