A5101987942- Prosthetics and Rehabilitation Robotics
- Muscle activation and electromyography studies
- Stroke Rehabilitation and Recovery
- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Advanced Optical Imaging Technologies
- Remote Sensing and Land Use
- Indoor and Outdoor Localization Technologies
- Data Management and Algorithms
- Diabetic Foot Ulcer Assessment and Management
- Robotic Locomotion and Control
- Smart Grid and Power Systems
- Land Use and Ecosystem Services
- Forest ecology and management
- Speech and Audio Processing
- Image Enhancement Techniques
- Urban Design and Spatial Analysis
- Fluid Dynamics and Heat Transfer
- Precipitation Measurement and Analysis
- Spinal Cord Injury Research
- Web Data Mining and Analysis
- Flood Risk Assessment and Management
- Nanomaterials and Printing Technologies
- Target Tracking and Data Fusion in Sensor Networks
- Advanced Image Fusion Techniques
China University of Geosciences
2024
Tianjin Normal University
2016-2024
China South Industries Group (China)
2014-2021
University of Shanghai for Science and Technology
2020
Wuhan Polytechnic University
2019
Hohai University
2017
Huazhong University of Science and Technology
2014
Harbin Engineering University
2013
Nanjing Xiaozhuang University
2012
Locomotion mode identification is essential for the control of a robotic rehabilitation exoskeletons. This paper proposes an online support vector machine (SVM) optimized by particle swarm optimization (PSO) to identify different locomotion modes realize smooth and automatic transition. A PSO algorithm used obtain optimal parameters SVM better overall performance. Signals measured foot pressure sensors integrated in insoles wearable shoes MEMS-based attitude heading reference systems (AHRS)...
In this paper, a control strategy is proposed to improve the tracking performance of lower limb exoskeleton (LLE). The active disturbance rejection (ADRC) with fast terminal sliding mode (FTSMC) can not only alleviate but also converge bounded region fast. Based on robotics analysis, dynamic model for LLE was established. To achieve decoupling coupled system, virtual input introduced, where system uncertainty and external disturbances were regarded as lumped disturbances. validate...
Wireless fingerprinting localization method learns a mapping function from fingerprint measurement to the estimated location, which is more suitable for complex indoor environments than propagation model-based methods. However, most traditional methods only consider location matching at single time or space points, but ignore fact that correlations in sequences may improve accuracy and robustness of mobile positioning. Recently, recurrent neural network (RNN) has been readily applied many...
This paper describes a system design and hybrid control algorithm of an electrically actuated lower limb exoskeleton (LLE). The mainly includes three parts: mechanical structure design, actuation sensor design. According to the initial state joint angle, LLE can be divided into Non-anthropomorphic (NAS) anthropomorphic (AS). human motion intention (HMI) estimation gait phase classification reference trajectory estimation. fuzzy logic is used detect different phases in classification. In...
Accurate estimation of forest aboveground biomass (AGB) is vital for informing ecosystem and carbon management. The Global Ecosystem Dynamics Investigation (GEDI) instrument—a new-generation spaceborne lidar system from NASA—provides the first global coverage high-resolution 3D altimetry data aimed specifically mapping Earth’s forests, but its performance yet to be tested large parts world. Here, our goal evaluate accuracies GEDI in measuring terrain, vertical structures, AGB reference...
Multi-angular remote sensing observation contains crucial information on forest structure parameters. Here, our goal is to examine the ability of multi-angular indices, which are constructed by typical-angular reflectances in red and NIR bands from MODIS observations, for retrieval biomass based field-measured above-ground (AGB) data. Specifically, we employed updated version MCD43A1 BRDF parameter product as an input models reconstruct reflectances. Furthermore, evaluated effects different...
Multi-angle optical reflectance measurements such as those from the NASA moderate resolution imaging spectroradiometer (MODIS) are sensitive to forest 3D structures, potentially serving a useful proxy estimate structural variables aboveground biomass (AGB)—a potential theoretically recognized but rarely explored. In this paper, we examined effectiveness of reconstructed MODIS typical-angle reflectances—reflectances observed hotspot, darkspot, and nadir directions—for estimating AGB both...
This paper considers the problem of tracking a moving target using time difference arrival (TDOA) and frequency (FDOA) measurements obtained at two unmanned aerial vehicles (UAVs) with varying baseline. Accumulation is necessary because emitter position cannot be estimated each emission when there are only UAVs as sensors. And velocity estimation accuracy often suffer from low convergence in conventional formation flight mode no matter what nonlinear filtering algorithm used. Based on...
Into the 21st century, human exploration of moon increasingly frequent, China, United States, Russia, India, Japan and other countries have joined ranks lunar which provided a lot data. And platforms Digital Moon are rewritten based on third-party plug-ins, is poor in real-time, operability interaction. On this research web platform built WebGL specification for rendering 3D graphics within any compatible browser without use plug-ins. So that paltform suitable many kinds browers, it...
Land surface albedo is one of the crucial parameters affecting land energy. The radiation reflected by earth's anisotropic, and it's main factors that affect accuracy retrieval from remotely sensed observations. Based on MODIS BRDF/albedo product six archetypal BRDFs, this study learned effect reflectance anisotropy retrieval. First, BRDFs were used to fit multi-angular observations or nadir least square method, then retrieved compared with real describe albedo. Results show closely related...
Aiming at producing highly uniform ultra-small solder bumps to meet the growing requirements in area array package, a novel fabrication method based on piezoelectric diaphragm-piston droplet jetting was proposed. The principle and customized equipment of this were introduced. Solder with diameter less than 100 mm successfully fabricated equipment. main control parameters, such as voltage amplitude, pulse duration nozzle diameter, studied investigate their impact bumps. experimental results...
As one of the AC and DC switching devices in power system, high voltage switchgear is mainly used for control protection systems. In order to meet demand large amount data, many types, fast processing speed quality fault diagnosis data environment, a parallel framework based on fusion algorithm designed by D-S Evidence Theory introduced, taking SF6 circuit breaker as an example this paper. trip(closing) coil current, current time are selected input six main types output system Considering...
By applying the Matlab software ,the Lohmann Ⅲ and Burch encoding method are used to achieve Fourier transform hologram respectively. The computer simulation reconstruction of is achieved. characteristic discussed.
This paper presents a novel Series Elastic Actuator (SEA) with double-layer parallel spring for lower limb exoskeletons (LLE). The SEA can improve the human-robot interaction comfort and have ability to absorb shock vibration. In order make assembly process simple convenient, series elastic unit adopt split structure, which includes an inner ring outer structure rectangular springs as element. At same time, in meet requirements of stiffness dimensions SEA, arrangement is adopted. 312Nm/rad,...