Path Tracking of a 4WIS–4WID Agricultural Machinery Based on Variable Look-Ahead Distance [PDF]
Applied Sciences, 2022 Aiming to solve the problem of the low path-tracking accuracy of mobile robots in agricultural environments, the authors of this paper propose a path-tracking method for agricultural machinery based on variable look-ahead distance.
Lijun Xu +5 more
doaj +5 more sources
Real-Time Look-Ahead Distance Optimization for Smooth and Robust Steering Control of Autonomous Vehicles [PDF]
2021 29th Mediterranean Conference on Control and Automation (MED), 2021 This paper presents an optimization problem for the look-ahead distance used in lateral automated vehicle control. A relation is formulated to describe the sensitivity of the control input steering speed $\dot \delta $ with respect to the variation of the look-ahead distance L.
Olivier Sename, John J Martinez
exaly +4 more sources
Self-Adjusting Look-Ahead Distance of Precision Path Tracking for High-Clearance Sprayers in Field Navigation [PDF]
AgronomyAs a core component of agricultural machinery autonomous navigation, path tracking control holds significant research value. The pure pursuit algorithm has become a prevalent method for agricultural vehicle navigation due to its effectiveness at low ...
Xu Wang +5 more
doaj +3 more sources
An Adaptive Path Tracking Controller with Dynamic Look-Ahead Distance Optimization for Crawler Orchard Sprayers [PDF]
ActuatorsBased on the characteristics of small agricultural machinery in terms of flexibility and high efficiency when operating in small plots of hilly and mountainous areas, as well as the demand for improving the automation and intelligence levels of ...
Xu Wang +5 more
doaj +3 more sources
Path Tracking Control of a Differential-Drive Tracked Robot Based on Look-ahead Distance
IFAC-PapersOnLine, 2018 Abstract In this paper, a PI path tracking controller based on look-ahead point information for a differential-drive crawler-type robot was developed. The robot is equipped with Global Navigation Satellite System (GNSS) antennas and a receiver module which are used as navigation sensors to obtain real-time estimates of the position and heading errors
Peichen Huang, Zhigang Zhang
exaly +3 more sources
Adaptive Look-Ahead Distance Based on an Intelligent Fuzzy Decision for an Autonomous Vehicle
2023 IEEE Intelligent Vehicles Symposium (IV), 2023 Fadel Tarhini +2 more
exaly +4 more sources
A look-ahead approach to mobile robot path tracking based on distance-only measurements [PDF]
AIP Conference Proceedings, 2019 In this paper, a path tracking controller based on distance-only measurements for nonholonomic mobile robots is presented. First, a kinematic model of the robot appropriate for path tracking applications is derived. Using a look-ahead approach, a time-varying feedback controller is proposed.
Plamen Petrov, Ivan Kralov
openaire +2 more sources
Vehicle System Dynamics, 2023 The advent of autonomous vehicles has brought about significant advancements in transportation technology, promising safer and more efficient means of travel. However, their full integration into society depends on the accuracy of path-tracking realised by a lateral controller.
Tarhini, Fadel +2 more
openaire +5 more sources
Look-Ahead Distance of a fiber probe used to assist neurosurgery: Phantom and Monte Carlo study
Optics Express, 2003 A short-separation, optical reflectance probe has been developed to assist the neurosurgeon in functional neurosurgery for accurate localization of the surgical target. Because of the scattering nature of tissue, the optical probe has a "Look Ahead Distance" (LAD), at which the measured optical reflectance starts to "see" or "sense" the underlying ...
Zhiyu, Qian +4 more
openaire +3 more sources
An Adaptive Octile JPS and Fuzzy-DWA Fused Path Planning Algorithm for Indoor Home Environments [PDF]
SensorsHome indoor environments are characterized by alternating open spaces and obstacle-cluttered regions, which pose critical challenges to the autonomous navigation of home service robots. Existing hybrid path planning algorithms generally suffer from three
Wei Li +5 more
doaj +2 more sources