convergent surface 中文意思是什麼
convergent surface
解釋
收斂面- convergent : adj. 1. 漸集一點的，會聚性的；包圍集中的。2. 【數學】收斂的。n. 【數學】收斂子；漸近分數。
- surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
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In the end, the impedance matrix of any three - dimensional conducting object can be portioned into sub - matrices by the projection iterative method ( pim ), the surface current and rcs can be calculated with convergent iterations, the wide - band electromagnetic scattering characteristics of three - dimensional conducting objects are also analyzed with the asymptotic waveform evaluation technique
最後應用投影迭代方法（ pim ）將三維導體目標的阻抗矩陣剖分成小矩陣，通過迭代計算出表面電流和雷達散射截面，並與漸近波形估計技術結合分析了三維導體目標的寬帶電磁散射特性。 -
Among hese method, one of the simplest is the deepest gradient descent algorithm, but it has one disadvantage that the solutions are oscillatory and slowly convergent. a friction term is ntroduced to avoid oscillatory solutions and raise convergence rate. the third major contribution of this dissertation is study on 3 - d diffuse object surface optical automatic measurement
其次，結合要處理的具體問題，介紹數值優化及幾種常用的無約束最優化計算方法，以最優梯度法為基礎，討論其演算法的優缺點，通過引進阻尼系數，改進了演算法的收斂速度，從而提高迭代精度。 -
The main innovation of our method is that we only need construct polygonal mesh possessing simple symmetric properties on both sides of control polygon edges of interpolated curves, and do n ' t need modify the subdivision rules near the interpolation curves during the process of subdivision. thus the subdivision rules are simple. the process is convergent and the limit surface is c everywhere except a finite number of points
該方法的主要創新思想是，在被插值曲線的控制多邊形兩側構造具有簡單對稱性質的多邊形網格，而在細分過程中，則無須修改被插值曲線附近的細分規則，兇此細分演算法是簡單的，細分過程是收斂的，且最終的插值曲面除有限個點外是c ~ 2連續的。
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