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Cited by 1,127

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

FAST-LIO: A Fast, Robust LiDAR-Inertial Odometry Package by Tightly-Coupled Iterated Kalman Filter

Xu, Wei, Zhang, Fu·2021·IEEE Robotics and Automation Letters

Abstract

This letter presents a computationally efficient and robust LiDAR-inertial odometry framework. We fuse LiDAR feature points with IMU data using a tightly-coupled iterated extended Kalman filter to allow robust navigation in fast-motion, noisy or cluttered environments where degeneration occurs. To lower the computation load in the presence of a large number of measurements, we present a new formula to compute the Kalman gain. The new formula has computation load depending on the state dimension instead of the measurement dimension. The proposed method and its implementation are tested in various indoor and outdoor environments. In all tests, our method produces reliable navigation results in real-time: running on a quadrotor onboard computer, it fuses more than 1200 effective feature points in a scan and completes all iterations of an iEKF step within 25 ms. Our codes are open-sourced on Github.1

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Metadata

Authors
Xu, W., & Zhang, F.
Venue
IEEE Robotics and Automation Letters
Published
2021-04
Volume
6
Issue
2
Pages
3317-3324
ISSN
  • 2377-3766 (ISSN-L)
  • 2377-3774
OpenAlex
W3133648073
Cited by
1,127
References
6
FWCI
67.49
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: FAST-LIO: A Fast, Robust LiDAR-Inertial Odometry Package by Tightly-Coupled Iterated Kalman Filter. https://app.cochat.ai/papers/10.1109/lra.2021.3064227
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Xu, W., & Zhang, F. (2021). FAST-LIO: A Fast, Robust LiDAR-Inertial Odometry Package by Tightly-Coupled Iterated Kalman Filter. IEEE Robotics and Automation Letters. https://doi.org/10.1109/lra.2021.3064227

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