"In the frame of ART-X, a professional receiver shall be prototyped, based on the experience form the previous ARTUS FP6 project, but improved towards a commercial competitive receiver in terms of functionality, performance, cost, size and power taking into account the evolving satellite navigation systems, changing markets and user needs. The objective is to have a full flexible, but yet powerful receiver being able to process all Galileo, GPS and GLONASS L1 signals, also for heading/attitude applications on one board (including RF-front-end, signal conditioning and processing and RTK navigation in real-time). The latest developments in advanced technologies (multi-frequency RF-Front-Ends, software receiver) shall be fully taken into account. Also considerable improvement of algorithms for real-time detection and mitigation of the three main measurement errors (multipath, interference and scintillation) being observed today in reference stations is a core topic. It shall also upgrade the AIV signal generator tool from ARTUS with multiple RF-signals for heading(attitude) capability. Functionality and performance validation shall be based on the laboratory signal generator, the GATE test environment and the Galileo GIOVE/IOV signal on E1, E5, E6, but also the GPS L1, L2C and L5 signals and the GLONASS L1 signal. Emphasize will also be put on evaluation on the competitors IP context being a precondition for successful commercialization. But also the setup of convincing product roadmaps to meet the user market demands will be a major focus."