Results 111 to 120 of about 54,884 (293)

Performance assessment of BeiDou-3 PPP-B2b real time pre-cise point positioning

Scientific Reports
To assess the performance of the PPP-B2b service, most existing studies typically store real-time PPP-B2b messages and leverage them to acquire precise satellite orbits and clock offsets.
Yu Lin, Laiyong Song, Jiaqi Shen, Zelin Mu   +3 more
doaj   +1 more source

Real-time calibration-free musculotendon kinematics for neuromusculoskeletal models

IEEE Transactions on Neural Systems and Rehabilitation Engineering
Neuromusculoskeletal (NMS) models enable non-invasive estimation of clinically important internal biomechanics. A critical part of NMS modelling involves estimating musculotendon kinematics, which comprise musculotendon unit lengths, moment arms, and lines of action.
Bradley M. Cornish, Laura E. Diamond, David J. Saxby, Zhengliang Xia, Claudio Pizzolato   +4 more
openaire   +4 more sources

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

Advanced 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

Real time on-the-fly kinematic GPS [PDF]

, 1997
Considerable interest has been show in the development and application of real time On-The-Fly (OTF) kinematic GPS. A major error source and limitation of such a positioning technique is that caused by cycle slips. When these occur, the integer ambiguities must be resolved for, which can take hundreds of epochs to complete depending on satellite ...
openaire   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Kinematic real-time feedback is more effective than traditional teaching method in learning ankle joint mobilisation: A randomised controlled trial [PDF]

, 2016
Background\ud \ud To analyse the effect of real-time kinematic feedback (KRTF) when learning two ankle joint mobilisation techniques comparing the results with the traditional teaching method.\ud \ud Methods\ud \ud Double-blind randomized trial. Settings:
Ruiz-Muñoz, Maria, Cuesta-Vargas, Antonio I., Manuel González-Sánchez, Ana Belén Ávila-Bolívar, Cuesta-Vargas, Antonio I, Ávila-Bolívar, Ana Belén, González-Sánchez, Manuel, Antonio I. Cuesta-Vargas, Maria Ruiz-Muñoz   +8 more
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Field Programmable Gate Arrays Based Real Time Robot Arm Inverse Kinematic Calculations and Visual Servoing

Electrica, 2018
Reliability and precision are veryimportant in space, medical, and industrial robot control applications.Recently, researchers have tried to increase the reliability and precision ofthe robot control implementations.
Barış Çelik, Ayça Ak, Vedat Topuz
doaj   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source