Results 1 to 10 of about 1,216 (256)

The Pseudoinverse Gradient Descent Method with Eight Branch Directions (8B-PGDM): An Improved Dead Reckoning Algorithm Based on the Local Invariance of Navigation

Applied Sciences
This paper establishes a fundamental connection between the local time invariance of motion parameters and dead reckoning (DR) accuracy. This insight enables the reformulation of navigation parameter estimation as a convex optimization problem solvable ...
Jialong Gao, Quan Liu, Hanqiang Deng, Lei Sun, Jian Huang, Ming Lei   +5 more
doaj   +2 more sources

Frogman Self-Navigation Method Based on Virtual Transponder Array and Dead Reckoning

IEEE Access, 2020
Using single transponder ranging (STR) information to aid positioning satisfies the needs of frogman autonomous positioning in waters emergency rescue, where miniaturized and low-cost devices are preferred. On this basis, a frogman self-navigation method
Yanshun Zhang, Nan Wang, Ming Li, Shudi Weng, Yongqiang Han   +4 more
doaj   +1 more source

A Novel V2V Cooperative Collision Warning System Using UWB/DR for Intelligent Vehicles

Sensors, 2021
The collision warning system (CWS) plays an essential role in vehicle active safety. However, traditional distance-measuring solutions, e.g., millimeter-wave radars, ultrasonic radars, and lidars, fail to reflect vehicles’ relative attitude and motion ...
Mingyang Wang, Xinbo Chen, Baobao Jin, Pengyuan Lv, Wei Wang, Yong Shen   +5 more
doaj   +1 more source

MEMS 3D DR/GPS Integrated System for Land Vehicle Application Robust to GPS Outages

IEEE Access, 2019
In this paper, we propose a MEMS 3D DR/GPS integrated system which provides 3D attitude and position information for land vehicle application. Since low-cost MEMS-IMU provides data with large bias, it is hard to obtain an accurate position of the land ...
Woo Jung Park, Jin Woo Song, Chang Ho Kang, Jae Hong Lee, Myung Hwan Seo, Sang Yeon Park, Jong Yun Yeo, Chan Gook Park   +7 more
doaj   +1 more source

High-Accuracy Absolute-Position-Aided Code Phase Tracking Based on RTK/INS Deep Integration in Challenging Static Scenarios

Remote Sensing, 2023
Many multi-sensor navigation systems urgently demand accurate positioning initialization from global navigation satellite systems (GNSSs) in challenging static scenarios.
Yiran Luo, Li-Ta Hsu, Yang Jiang, Baoyu Liu, Zhetao Zhang, Yan Xiang, Naser El-Sheimy   +6 more
doaj   +1 more source

A vehicular positioning with GPS/IMU using adaptive control of filter noise covariance

ICT Express, 2016
Vehicular positioning with GPS/IMU has been studied a lot to increase positioning accuracy. The positioning algorithms mainly use DR (Dead Reckoning) which uses EKF (Extended Kalman Filter).
Juwon Kim, Sangsun Lee
doaj   +1 more source

1-Point RANSAC UKF with Inverse Covariance Intersection for Fault Tolerance

Sensors, 2020
The fault tolerance estimation method is proposed to maintain reliable correspondences between sensor data and estimation performance regardless of the number of valid measurements.
Sun Young Kim, Chang Ho Kang, Jin Woo Song   +2 more
doaj   +1 more source

Persistent Localization of Autonomous Underwater Vehicles Using Visual Perception of Artificial Landmarks

Journal of Marine Science and Engineering
Persistent localization is a critical requirement for autonomous underwater vehicles (AUVs) engaged in long-term missions. Conventional dead-reckoning (DR) methods for estimating the position and orientation of AUVs often suffer from drift, necessitating
Jongdae Jung, Hyun-Taek Choi, Yeongjun Lee   +2 more
doaj   +1 more source

An optimal innovation based adaptive estimation Kalman filter for accurate positioning in a vehicular ad-hoc network

International Journal of Applied Mathematics and Computer Science, 2021
The vehicular ad-hoc network (VANET) is subject to various attacks because of its dynamic nature and ephemeral character. In VANET, vehicles communicate with each other for safety awareness.
Sumithra S., Vadivel R.
doaj   +1 more source

A Blended Extended Kalman Filter Approach for Enhanced AGV Localization in Centralized Camera-Based Control Systems

Automation
This research presents a study on enhancing the localization and orientation accuracy of indoor Autonomous Guided Vehicles (AGVs) operating under a centralized, camera-based control system.
Nopparut Khaewnak, Soontaree Seangsri, Siripong Pawako, Sorada Khaengkarn, Jiraphon Srisertpol   +4 more
doaj   +1 more source