A5100745002- Iterative Learning Control Systems
- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Advanced Algorithms and Applications
- Quantum Information and Cryptography
- Radar Systems and Signal Processing
- Mechanical and Optical Resonators
- Remote-Sensing Image Classification
- Tribology and Wear Analysis
- Sensorless Control of Electric Motors
- Maritime Ports and Logistics
- Vibration and Dynamic Analysis
- Lubricants and Their Additives
- Advanced DC-DC Converters
- Quantum optics and atomic interactions
- Robotic Path Planning Algorithms
- Elevator Systems and Control
- Neuroinflammation and Neurodegeneration Mechanisms
- Optimization and Variational Analysis
- Power Line Inspection Robots
- Regional Economic and Spatial Analysis
- Geochemistry and Geochronology of Asian Mineral Deposits
- Neural Networks Stability and Synchronization
Northwestern Polytechnical University
2020-2024
Wuhan Institute of Technology
2024
Wuhu Hit Robot Technology Research Institute
2024
Yanbian University
2023
University of Jinan
2019-2023
Shanghai Jiao Tong University
2013-2021
China University of Geosciences (Beijing)
2018
Shenyang Jianzhu University
2015
Harbin Institute of Technology
2014
Shanxi University
2007
This article investigates the problem of frequency-invariant (FI) beamforming wideband multiple-input multiple-output (MIMO) radars and presents two design criteria to synthesize FI beampatterns under peak-to-average power ratio (PAPR) nulling constraints. Precisely, are apply least-squares absolute errors, respectively, approximate a desired transmit beampattern. Both result in nonconvex constrained optimization problems. For former, solution is derived via reformulating initial into...
Click-Through Rate (CTR) prediction is a crucial task in recommendation systems, online searches, and advertising platforms, where accurately capturing users' real interests content essential for performance. However, existing methods heavily rely on ID embeddings, which fail to reflect true preferences such as images titles. This limitation becomes particularly evident cold-start long-tail scenarios, traditional approaches struggle deliver effective results. To address these challenges, we...
The generation of entanglement and information distribution among macroscopic systems which are spatially separated paramount importance in the realm quantum networks communication. In this paper, we propose a scheme that enables preparation long-distance between two magnons controllable transfer from giant atom to either magnon, where can be positioned symmetrically or asymmetrically relation atom, all coupled microwave cavity-array waveguide. By considering significant frequency detuning,...
A new rotor position sensorless detecting method based on high power electrically excited synchronous motors is proposed. The central idea the back electromotive forces contain information of position, when a frequency signal injected in by excitation part. So can be obtained detection and calculation motor forces. By experimental verification, injection has very good effect eliminate negative impact opposite rotating direction pulsation problem at early starting process.
MoS2 has excellent vacuum lubricating performance. However, it is prone to be oxidized in a high-temperature atmospheric environment, leading the deterioration of its performance and even serious space accidents. The MoS2-based solid materials can improved some extent by co-compounding appropriate oxides Ag. tribological properties several common nano-oxides (ZnO, TiO2, Al2O3, ZrO2) composited with metal Ag composites were compared at 450 °C. results showed that comprehensive MoS2-TiO2-Ag...
A new method is proposed to discriminate various lithological units, including dunites, harzburgites, cumulate gabbros, serpentinites and basalts of the Dong Co ophiolites sedimentary rocks volcanic rocks, in area by using Advanced Space borne Thermal Emission Reflection Radiometer (ASTER) data. In this paper, firstly, based on ASTER image spectra known a subset bands are selected enhance differences between each unit eliminate interference information principle component analysis (PCA)....
Aiming at the problem of underdetermined DOA estimation coprime array, a sparse reconstruction algorithm with approximated zero norm constraint is proposed. The method first performs vectorization processing on covariance matrix received data array. From perspective difference coarray and through de-redundancy processing, output virtual uniform linear array obtained, using sparseness incident signal relative to entire airspace, equivalent corresponding represented by set overcomplete bases....
Networked multi-motor synchronous control system has been widely used in industry for its good flexibility and extensibility. Aiming at the synchronization problem of networked system, an improved compensation strategy error deviation coupling based on variable universe fuzzy is proposed to reduce during start-stop disturbance. In this paper, are analyzed. The includes two aspects. Firstly, basis traditional structure, factor added improve between motors. Secondly, PD as algorithm realize...
Virtual synchronous generator technology (VSG), which simulates the electro-mechanical transient characteristics of generators, enables power supply or load that adopt a converter with number its external characteristics, including inertia, damping, frequency and voltage regulation. However, when grid is not ideal, traditional VSG control will lead to unbalanced three-phase grid-connected current, so method specific sub-voltage component feed-forward proposed. First all, problems in...
Multi-motor synchronous networked control system (NCS) is widely used in industrial enterprises. In this paper, an improved fuzzy active disturbance rejection (ADRC) strategy proposed to reduce the adverse effect of network random delay on multi-motor and improve performance system. Considering time-varying which including long short-time delay, mathematical model NCS established. The improvement ADRC includes two aspects. First, according system, first-order adopted tracking differentiator...
Along with the economic development of energy resources consumption, global non-renewable fossil supply dwindling, shortages have not allowed to ignore. This paper put waterfront ecological residential district as research object, first all, from perspective terminal consumption characteristics, combined relevant standards and policies formulated by state local government reasonable set building then using model method experience index calculate demand in detail for all kinds function...
Consider the impact of network delay on control system performance, a kind strategy predictive ADRC (active disturbance rejection control) for NCS (networked system) is proposed. The includes two parts: prediction and improved motor. In order to realize accurate delay, model based algorithm CEEMD (complementary ensemble empirical mode decomposition) LSSVM (least squares support vector machine) linear used controller motor, value predicted as an input controller. And PI introduced into...
The remote sensing data have respective advantages in application of structural extraction and research. Landsat 8 OLI image can be used to rapidly delineate the large-scale lineaments due its large swath width; ASTER mid-scale structures shown by boundaries different rocks on basis more SWIR bands; high spatial resolution Worldview-2 images for detailed visual interpretation small-scale structures. In this study, we applied OLI, research framework western Beishan orogenic belt provide some...
Aiming at the double motors tension control problem in industrial production, principle of system is analyzed. The hardware and software using S7-300 PLC are designed. that field tuning parameters controller dangerous inconvenient, a method off-line PID proposed. controlled object modeled. And this model input into function block FB100. FB41 FB100 connected to each other. simulation constructed. By STEP7 software, visual response curve obtained. observing curve, performance can be adjusted....