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A novel compound controller is developed for the vehicle active suspension with an electro-hydraulic actuator. The models of the actuator and the quarter vehicle are both first established. A compound controller is designed to utilize RBF neural network approximate the output of PID, and to combine PID algorithm with a RBF neural network output as its control laws. This controller synthesizes both...
A novel palmprint feature extraction method is proposed by using the Weight Coding Based Non-negative Sparse Coding (WCBNNSC). The WCBNNSC algorithm can model the respective field of V1 in the primary visual system of brain. And this algorithm includes more image information than the early Non-negative Sparse Coding (NNSC). Utilizing the WCBNNSC algorithm, the feature basis vectors of palmprint images...
A two-dimensional ultra-precision positioning system with high-speed and large-range which can be used in a micro-nanometer machining has been studied in this paper. The macro-micro dual-drive system is used to satisfy these positioning requirements. Because of the strong nonlinearity of the piezoelectric devices, such as the hysteresis and the creep, and the influence of the highly accelerated run...
According to the positioning accuracy requirements of the two-dimensional precision positioning system with high speed, wide platform, large range and linear motor driving, an intelligent positioning control system based on the linear motor is studied in this paper. The precision positioning experiment is also conducted. The experimental result shows that the positioning accuracy and the dynamic performance...
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