An Outlier-Robust GNSS-inertial-LiDAR Localization System

Siwei Zhong, Chao Wei*, Jibin Hu, Ting Zhang, Jie Yu, Yongdan Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

We tackle a modified Outlier-Robust GNSS-inertial-LiDAR unmanned vehicle localization system based on the factor graph. The frame of the localization system utilizes graph optimization to fuse information from IMU pre-integration, GNSS and LiDAR-inertial odometry. In order to cope with the problem of high-precision localization in complex scenes in driving process of the unmanned vehicle, residual x2 outlier test added before graph optimization applies in this frame to effectively eliminate outliers from GNSS and LiDAR-inertial odometry and mitigate their influence to maintain robust localization. In addition, a fixed-time sliding window is organized in optimization to lower the computation, satisfying real-time requirements. Through extensive experiments in simulations, the results show that this system can provide a reliable localization result and takes advantage over Kalman filter and pure LiDAR algorithm.

Original languageEnglish
Title of host publicationICSMD 2021 - 2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665427470
DOIs
Publication statusPublished - 2021
Event2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence, ICSMD 2021 - Nanjing, China
Duration: 21 Oct 202123 Oct 2021

Publication series

NameICSMD 2021 - 2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence

Conference

Conference2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence, ICSMD 2021
Country/TerritoryChina
CityNanjing
Period21/10/2123/10/21

Keywords

  • graph optimization
  • multi-sensor fusion
  • outlier-robust

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