The Hybrid Overlay Positioning with 5G and GNSS (HOP-5G) project targets the demonstration of a 5G local overlay testbed for enhanced user positioning, in combination with GNSS and sensor technologies. Within this project, the HOP-5G consortium focuses on the exploitation of 5G innovative positioning enablers and their hybridisation with GNSS and sensors. This is based on the dedicated…

Position uncertainty during autonomous manoeuvres such as orbit-raising/de-orbiting requires that the local knowledge during low thrust (i.e. with electric propulsion) is accurately determined. Current orbit-raising assumes semi-autonomous control assisted by GNSS, with a long time integral to measure increasing altitude and trajectory of the satellite. The use of a hybrid GNSS unit that…

GNSS simulations are an important toolset supporting system engineering trade-offs and decisions. They are used to display and monitor key system performance indicators as well as study system behaviour, both through synthetic scenarios and real data replay. Industry and ESA currently use different tools to simulate GNSS systems, however often constrained to undertake only one of two different…

GNSS simulations are an important toolset supporting system engineering trade-offs and decisions. They are used to display and monitor key system performance indicators as well as study system behaviour, both through synthetic scenarios and real data replay. Industry and ESA currently use different tools to simulate GNSS systems, however often constrained to undertake only one of two different…

Recent advances in technology have contributed to the deployment of a "de-facto" large GNSS receiver array based on affordable smart devices that are easy to find in the consumer market (dual band smartphones, raw GNSS data recording, new sensors).  These devices, evolving fast with each new generation, feature an increasing number of capabilities and sensors able to collect a variety of…