Loosely-Coupled Camera-IMU-OGS Fusion Localization

Jianyu Chen, Jinwen Hu, Zhao Xu, Gang Xu

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

Abstract

In this paper, a hierarchical multi-sensor fusion approach is presented for localization in unmanned ground vehicle (UGV) applications where global navigation satellite system (GNSS) signals are not available. The proposed method incorporates Odometer, Gear, and Steering wheel angle (OGS) information from the UGV. At the top layer, an optimum data fusion approach based on the linear minimum variance principle and using an adaptive weighting coefficient matrix is presented for fusing each local state estimation, and at the bottom layer, adaptive extended Kalman filter (AEKF) operates as a local filter, integrating IMU and OGS data with camera to generate the global optimal estimate. The proposed methodology avoids applying upper constraints on the covariance for estimate to remove the connection between local states. We validate the performance of our system using truly collected data.

Original languageEnglish
Title of host publicationProceedings of 3rd International Conference on Autonomous Unmanned Systems, ICAUS 2023 - Volume 7
EditorsYi Qu, Mancang Gu, Yifeng Niu, Wenxing Fu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages72-82
Number of pages11
ISBN (Print)9789819711024
DOIs
StatePublished - 2024
Event3rd International Conference on Autonomous Unmanned Systems, ICAUS 2023 - Nanjing, China
Duration: 9 Sep 202311 Sep 2023

Publication series

NameLecture Notes in Electrical Engineering
Volume1177 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference3rd International Conference on Autonomous Unmanned Systems, ICAUS 2023
Country/TerritoryChina
CityNanjing
Period9/09/2311/09/23

Keywords

  • Localization
  • sensor fusion
  • UGV

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