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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.
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.
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