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• W4313238710 abstract "With its fast and accurate position and attitude estimation, the feature-based lidar-inertial odometer is widely used for UAV navigation in GNSS-denied environments. However, the existing algorithms cannot accurately extract the required feature points in the spatial grid structure, resulting in reduced positioning accuracy. To solve this problem, we propose a lidar-inertial navigation system based on grid and shell features in the environment. In this paper, an algorithm for extracting features of the grid and shell is proposed. The extracted features are used to complete the pose (position and orientation) calculation based on the assumption of local collinearity and coplanarity. Compared with the existing lidar navigation system in practical application scenarios, the proposed navigation system can achieve fast and accurate pose estimation of UAV in a GNSS-denied environment full of spatial grid structures." @default.
• W4313238710 created "2023-01-06" @default.
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• W4313238710 date "2022-12-28" @default.
• W4313238710 modified "2023-09-26" @default.
• W4313238710 title "A Lidar-Inertial Navigation System for UAVs in GNSS-Denied Environment with Spatial Grid Structures" @default.
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• W4313238710 doi "https://doi.org/10.3390/app13010414" @default.
• W4313238710 hasPublicationYear "2022" @default.
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