GNSS for Rail Transportation

Description

This book proposes a general methodology to introduce Global Navigation Satellite System (GNSS) integrity, starting from a rigorous mathematical description of the problem. It highlights the major issues that designers need to resolve during the development of GNSS-based systems requiring a certain level of confidence on the position estimates. Although it follows a general approach, the final chapters focus on the application of GNSS integrity to rail transportation, as an example. By describing the main requirements in the context of train position function, one of which is the safe function of any train control system, it shows the critical issues associated with the concept of safe position integrity. In particular, one case study clarifies the key differences between the avionic domain and the railway domain related to the application of GNSS technologies, and identifies a number of railway-signaling hazards linked with the use of such technology. Furthermore, it describes various railway-signaling techniques to mitigate such hazards to prepare readers for the future evolution of train control systems, also based on the GNSS technology. This unique book offers a valuable reference guide for engineers and researchers in the fields of satellite navigation and rail transportation. Front Matter ....Pages i-xii Introduction and Book Objectives (Letizia Lo Presti, Salvatore Sabina)....Pages 1-6 Front Matter ....Pages 7-7 Review of Common Navigation Algorithms and Measurements Errors (Letizia Lo Presti, Marco Pini)....Pages 9-23 Fundamentals of Integrity Monitoring (Letizia Lo Presti, Giulio Franzese)....Pages 25-57 Evaluation of the Confidence Intervals (Letizia Lo Presti, Giulio Franzese)....Pages 59-86 Methods for Protection-Level Evaluation with Augmented Data (Letizia Lo Presti, Marco Pini)....Pages 87-118 Front Matter ....Pages 119-119 The Rail Environment: A Challenge for GNSS (Salvatore Sabina, Fabio Poli, Nazelie Kassabian)....Pages 121-204 A New Perspective for GNSS Based Safe Train Position (Salvatore Sabina, Nazelie Kassabian, Fabio Poli)....Pages 205-232 Back Matter ....Pages 233-244