A method and apparatus for generating a GPS simulation scenario

摘要

A digitized map data set comprising geographical region pertaining to itinerary and including data regarding static environmental features that are present along the itinerary is provided. Dynamic/static positional and transmittal data regarding global positioning system (GPS) satellites that are potentially relevant for GPS-based position determination along the itinerary are also provided. Starting time instant and geographical starting and destination positions of itinerary are specified, and different vehicle routes are computed based on the digitized map data set, and from computed routes determining different sets of vehicle node positions and associated time instants along itinerary. Different instantaneous quality metrics are calculated from the dynamic/static positional and transmittal data regarding GPS satellites and static environmental features present along the itinerary. An overall GPS performance data quantity pertaining to itinerary is then calculated based on the different GPS quality metrics and associated time instants. An independent claim is also included for an apparatus for implementing generation of GPS simulation scenario.