His current activities are GNSS signal processing, GNSS integrity monitoring and hybridization of GNSS with other sensors. Marion AUBAULT-ROUDIER is a Radionavigation engineer in the navigation/location signals department at CNES, the French Space Agency, where she is involved in the optimization of GNSS signals. She graduated as an electronics engineer in 2011 from ENAC (Ecole Nationale de l'Aviation Civile) in Toulouse, France. She received her PhD in 2015 from the Department of Mathematics, Computer Science and Telecommunications of the INPT (Polytechnic National Institute of Toulouse), France. Jérémy VEZINET holds a Ph.D. in multi-sensors hybridization. He is a Research Associate in the TELECOM team of ENAC in Toulouse (France) since 2014. He has been involved in several projects on multi-antenna GNSS receivers, GNSS/INS integration techniques and integrity monitoring. His research interests are GNSS, Inertial Navigation, Multi-sensor Hybridization, Integrity Monitoring and Video-Based Navigation.

The objective of this paper is to determine the ranging performance of the upcoming fifth generation (5G) signal. In order to do so, it is required to define 5G correlator outputs mathematical models. 5G systems will use OFDM (Orthogonal Frequency Division Multiplexing) signals; in the literature, mathematical models of OFDM signals are developed at the different receiver signal processing stages. These models assumed that the propagation channel is constant over an OFDM symbol; nevertheless, an in-depth study of QuaDRiGa, a 5G compliant propagation channel simulator, invalidates this hypothesis. Therefore, in this paper, mathematical models are developed that take into account the channel evolution. The focus is given on correlator outputs and results are applied to the computation of 5G based pseudo range accuracy.