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• W4362474920 abstract "This paper proposes a robotic state estimation and map construction method. The traditional lidar SLAM methods are affected by sensor measurement noise, which causes the estimated trajectory to drift, especially along the altitude direction caused by lidar noise. In this paper, ground parameters in the environment are extracted to construct the ground factors to compress the trajectory estimation drifting along the altitude direction using the characteristics of constant robot pose relative to the ground. Our method uses tightly coupled lidar and inertial to obtain low-drift lidar odometry factors by factor graph optimization. The optimized lidar odometry factors are then added to a global factor graph, together with ground, loop closure, and GPS factors to obtain accurate robot state estimation and mapping after factor graph optimization. The experimental results show that our method has comparable results with advanced lidar SLAM methods, and even performs better in some complex and large-scale environments." @default.
• W4362474920 created "2023-04-05" @default.
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• W4362474920 date "2023-03-31" @default.
• W4362474920 modified "2023-10-03" @default.
• W4362474920 title "Tightly Coupled 3D Lidar Inertial SLAM for Ground Robot" @default.
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• W4362474920 doi "https://doi.org/10.3390/electronics12071649" @default.
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