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A new iterative learning control (ILC) method is presented for the trajectory tracking control of a kind of linear system. This new method does not need much detailed knowledge of the system. After a fixed reference batch is properly selected, the ratio of the input change and corresponding output change between the current and fixed reference batches multiplied by an exponential learning coefficient...
According to the equivalent relation of Cartesian and polar coordinate system and the expression of current vector field in Cartesian coordinate system, a new GIS expression method of current vector field is presented in this paper. Taking in situ current field data as study object, the paper analyzes the structure of current field using the new expression method and the results prove that the new...
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