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Cooperative localization of vehicles sharing GNSS pseudoranges corrections with no base station using set inversion

Abstract

Fully distributed localization methods with no central server are relevant for autonomous vehicles that need real-time cooperation. In this paper, mobile vehicles share estimates of GNSS pseudoranges common errors also known as biases. The biases that affect the pseudoranges are mainly due to signal propagation and inaccurate ephemeris data. By describing the measurements models as geometric constraints on intervals, cooperative localization turns into distributed set inversion problem. The solution of this problem is guaranteed to contain the true vehicles positions. We consider vehicles which cooperate and exchange information in order to improve the absolute and relative estimation by fusing pseudoranges corrections shared between them. Results using real measurements are presented to illustrate the performance of the proposed approach in comparison with a standalone method.
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Dates and versions

hal-01369824 , version 1 (26-09-2016)

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Khaoula Lassoued, Philippe Bonnifait, Isabelle Fantoni. Cooperative localization of vehicles sharing GNSS pseudoranges corrections with no base station using set inversion. IEEE Intelligent Vehicle Symposium (IV 2016), Jun 2016, Göteborg, Sweden. pp.496-501, ⟨10.1109/IVS.2016.7535432⟩. ⟨hal-01369824⟩
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