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The time-domain calibration coefficient of a D-Dot sensor should be identical across various transverse electromagnetic (TEM) cells to comply with the IEEE Std 1309. However, in our previous calibration experiments, poor consistency was observed. The size of D-Dot sensors relative to TEM cells is considered the main reason for this poor consistency. Therefore, this study aims at determining the calibration...
Grey diagnosis method is introduced in this paper. Grey relation analysis is applied in model identification of the fault diagnosis. Take example for the fault diagnosis for shipboard chemical defense equipment. The grey diagnosis methods for shipboard chemical defense equipment are studied by applying grey system theory and database. The theory of fault diagnosis by grey relation degree is put forward...
According to the sales forecasting problems of financial equipments,on the basis of radial basis function (RBF, for short) theory, a nonlinear combination forecasting model is established based on RBF neural network by transforming a nonlinear mapping(input layer to hidden layer) to linear mapping in another space, this model greatly improves learning speed of neural networks, avoids local optimum...
In this paper we analyzed the relationship between the accuracy of direction of arrival (DOA) estimation and manifold length of linear array, abstracted from it an index to compare the accuracy of DOA estimation among linear arrays. Based on analysis of the index, an approach to design linear array with high accuracy in DOA estimation was presented. The results of stimulation verify the effectiveness...
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