Results 31 to 40 of about 13,392 (258)

Batch Simplification Algorithm for Trajectories over Road Networks

open access: yesISPRS International Journal of Geo-Information, 2023
The steady increase in data generation by GPS systems poses storage challenges. Previous studies show the need to address trajectory compression. The demand for accuracy and the magnitude of data require effective compression strategies to reduce storage.
Gary Reyes   +3 more
doaj   +1 more source

GPS-DENIED GEO-LOCALISATION USING VISUAL ODOMETRY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The primary method for geo-localization is based on GPS which has issues of localization accuracy, power consumption, and unavailability. This paper proposes a novel approach to geo-localization in a GPS-denied environment for a mobile platform.
A. Gupta, H. Chang, A. Yilmaz
doaj   +1 more source

Trajectory Clustering for People's Movement Pattern Based on Crowd Souring Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
With the increasing availability of GPS-enabled devices, a huge amount of GPS trajectories recording people's location traces have been accumulated and shared freely on the Web.
J. Chen, T. Hu, P. Zhang, W. Shi
doaj   +1 more source

Positioning Technique Based on Vehicle Trajectory Using GPS Raw Data and Low-cost IMU

open access: yesInternational Journal of Automotive Engineering, 2012
This paper proposes a technique of position estimation which is applicable to urban environments where the accuracy of GPS positioning is deteriorating.
Jun-ichi Meguro   +3 more
doaj   +1 more source

Target moving trajectory estimation by multiple receivers based on GPS forward scattering radar

open access: yesThe Journal of Engineering, 2019
The estimation of target moving trajectory by the multiple receivers based on global positioning system (GPS) forward scattering radar has been first presented in the study, which cannot be obtained by the traditional method.
Chaoqun Gao   +3 more
doaj   +1 more source

A Simple Method to Improve Autonomous GPS Positioning for Tractors

open access: yesSensors, 2011
Error is always present in the GPS guidance of a tractor along a desired trajectory. One way to reduce GPS guidance error is by improving the tractor positioning.
Tim Stombaugh   +3 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

open access: yesAdvanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

M-STCP: an online ship trajectory cleaning and prediction algorithm using matrix neural networks

open access: yesFrontiers in Marine Science, 2023
Accurate prediction of ship trajectories is crucial to guarantee the safety of maritime navigation. In this paper, a matrix neural network-based online ship track cleaning and prediction algorithm called M-STCP is suggested to forecast ship tracks ...
Shuai Guo   +5 more
doaj   +1 more source

Task‐Oriented Path Planning Towards Autonomous Sensor Network Deployment in Rainforest Canopies

open access: yesAdvanced Robotics Research, EarlyView.
An informative path planner for drone‐based deployment of wireless sensor networks in rainforest canopies is presented, addressing key challenges in large‐scale biodiversity monitoring. By integrating canopy surface detection with connectivity‐aware sampling under strict flight constraints, the approach enables efficient and reliable aerial sensor ...
Rita Santos Raminhos, Salua Hamaza
wiley   +1 more source

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