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Computer Fitting of Shielding Effectiveness for Electromagnetic Shielding Clothing

There are not a effective method to describe the distribution rule of shielding effectiveness for electromagnetic shielding clothing at present. A new analysis method of shielding effectiveness (SE) based on NURBS curve is proposed in this paper. With this method, the SE of the local clothing can be fitted with curve to observe the distribution rule. First, a design method of testing points on local clothing is given. Secondly, some concrete functions and program steps of curve fitting are listed. Finially, distribution image of shielding effectiveness on arm position is drew by some experiments. The results show that this algorithm can draw the 3D SE distribution image of local clothing is more correct and can show the distribution rule of electromagnetic wave in local human body.