A5101790258- Advanced Algorithms and Applications
- Power Systems Fault Detection
- Image and Signal Denoising Methods
- Electrical Fault Detection and Protection
- Particle Detector Development and Performance
- Medical Imaging Techniques and Applications
- Fault Detection and Control Systems
- Particle physics theoretical and experimental studies
- Industrial Technology and Control Systems
- Adaptive Control of Nonlinear Systems
- Advanced Sensor and Control Systems
- Aeroelasticity and Vibration Control
- Cryptographic Implementations and Security
- Stability and Control of Uncertain Systems
- Autonomous Vehicle Technology and Safety
- Sensorless Control of Electric Motors
- Error Correcting Code Techniques
- Robotic Path Planning Algorithms
- Advanced Control Systems Optimization
- Enzyme-mediated dye degradation
- Risk and Safety Analysis
- Industrial Automation and Control Systems
- Pesticide and Herbicide Environmental Studies
- Lightning and Electromagnetic Phenomena
- Advanced Decision-Making Techniques
Beihang University
2018-2019
China National Institute of Standardization
2019
Northwest University
2013
University of Electronic Science and Technology of China
2008-2013
Beijing University of Civil Engineering and Architecture
2013
Shenzhen University
2005
University of Liverpool
2005
This paper designs a parameter-dependent self-adaption integral sliding mode controller which converges the system in finite time while focusing on an uncertain linear parameter varying (LPV) model of variant aircraft that has large-scale variation sweep angle and extension. design promotes robustness L <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> performance aircraft's speed altitude during process. According to longitudinal...
As an excellent implement used for controller development and HIL simulation, dSPACE has been applied to many fields. But it can not meet the demands of data processing sampling in some complex or high-speed occasions. By making use FPGA this paper, problems will be easily resolved. In accordance with usual requirements, I/O expansion, PWM generator, A/D preconditioning, modules were constructed as basic function modules. The real-time controlled object through FPGA, captured from FPGApsilas...
Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing(DFT-S-OFDM) is widely applied to the next generation wireless communication, because of its good performance in band utilization, high ability resist multipath interference, low peak average power ratio and emitted energy. Traditional data security methods can not effectively protect air interface implement complex. This paper proposed a new physical layer encryption algorithm. The algorithm utilized initial value...
A novel but effective signal processing tool - second generation wavelet (SGW) analysis is proposed to extract the features of fault-generated transient waves: maxima amplitude fluctuation and polarities. The current signals observed at each end power transmission line are firstly transformed into an aerial mode when fault occurs. original data split approximation detail signal. updated using information contained in Meanwhile, predicted sig nal. represents steady component contains...
With different flight conditions and tasks, the morphing aircraft can change its shape to obtain optimal aerodynamic performance. In this paper, a controller design method for linear parameter-varying (LPV) system is studied. Firstly, establishment process of LPV model introduced. The open loop dynamic responses actual nonlinear are compared. Then, on basis satisfying Linear Matrix Inequality (LMI) condition Lyapunov stability, class finite time convergent self-adaptive sliding mode variable...
A Multi-resolution Morphological Gradient (MMG) filtering technique is applied successfully into the transient fault locator. The performance of MMG will inevitably deteriorate when various disturbances are imposed on signals. These can be considered as noise. In this paper, Median filter to location for noise reduction in signals and improve accurate using MMG. confidence analysis introduced discuss reliabilities under different Signal-Noise-Ratios noisy environments. Since accuracy relies...
A fault detection algorithm for turbopump based on lifting wavelet and LMS is proposed in this paper, to deal with the health monitoring of which high failure rate. Lifting transform used signal decomposition single-scale reconstruction. And feature extracted from weighted average energy approximation signals detail signals, its sequence filtered by (Least mean square error adaptive algorithm). After calculating ratio between point value neighboring local points, can be identified according...
The features of the received signal in LDPC-COFDM MIMO system with space-time block coding(STBC) was analyzed this paper, estimate obeys Gaussian distribution and it has nothing to do statistical specific channel. According signal, a new decoding algorithm LDPC for COFDM-MIMO is proposed. performance detailed case different bit rates compared other schemes. simulation results show that can greatly reduce number iterations, improve speed. Furthermore, good performances adaptability code rates.
Abstract Fault refers to the loss of function equipment during operation. When a fault occurs, would usually show some surface features, which can be also called signals. Thus, faults diagnosed by deep analysis. Among mechanical and electrical products, centrifugal pump is one most typical ones, has majority characteristics in various kinds ordnance. Through study diagnose, route diagnose products establishment system clarified. In study, composition firstly introduced. So system. Then...
Abstract Fault detection and diagnosis (FDD) provides safety alarms diagnostic functions for a nuclear power plant (NPP), which comprises large complex systems. NPP has number of parameters make it difficult achieve FDD. Now many methods have lack better explanation faults quantitative analysis. Therefore, to overcome the “black box” FDD based on data-driven methods, this paper adopts signed directed graph (SDG) in knowledge It can express cause effect accidents through maps. At same time,...
Abstract In order to solve the control difficulties such as large dynamic delay, serious coupling between machine and furnace strong nonlinear, feedforward feedback predictive is proposed coordinated system on basis of multi-model control, static part designs feed line coal quantity against quality disturbance accurate balance energy. Thus, reference total fuel under target load instruction determined, fully considers compensation unit energy storage, gives a certain overshoot boiler...