V2X The Toughest Test to Date for GPS
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Transcript of V2X The Toughest Test to Date for GPS
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Chaminda Basnayake, Ph.D.
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Positioning Technology for V2X
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Agenda
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What is V2X ?
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What makes V2X possible ?
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Communications
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Positioning
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Why GPS / GNSS ?
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GNSS Measures Range/Distance
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GPS Range & Position Estimation (Standalone Case)
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GPS Errors: Atmospheric Delay
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Satellite Visibility / Selection & Geometry
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Sky Visibility in V2X
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GPS Signal Reflections / Multipath
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Typical Automotive Grade GPS Receiver Error Budget
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CEP & Performance Implications
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Example of Receiver Type & Sky View Variations
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The V2X Positioning Problem
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V2X Over-the-Air Messaging (OTA)
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V2X Positioning Example (Share Position Only)
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GPS Range & Position Estimation (Differential )
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Proposed Use of SAE J2735 GNSS Data
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V2X Relative Positioning
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Alternative Paths to Higher Accuracy: GPS/GNSS Corrections
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Alternative Paths to Higher Accuracy: Multiple Frequency GPS/GNSS
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GNSS Threats: Jamming
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GNSS Threats: Spoofing
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Summary & Conclusions
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Renesas V2X Solution & Partners
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Renesas V2X Solution
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REFERENCES
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Please Complete the Survey Form
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