GPS World, March 2011

Road Talk Interoperability Considerations for V2X GNSS Receivers The presence of different types of devices spanning multiple GNSS receiver types configurations hardware software and consequent widely varying capabilites among a user mix of vehicles cyclists and pedestrians poses several engineering challenges for a V2X scheme in which all road users share data with each other and with the road infrastructure Chaminda Basnayake General Motors Global Research and Development T he use of location awareness for transportation FIGURE 1 V2X system users V2X Background GPS World March 2011 www gpsworld com 36

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