radial line method 中文意思是什麼

radial line method 解釋
輻射線法
  • radial : adj 1 光線的；光線狀的。2 放射的，輻射（狀）的。3 鐳的。4 【數學】半徑的；【物理學】徑向的；【解...
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. We also derived the relationship between the radial local density distribution and the observed line integral density distribution by fourier integral transform. on this basis, the density inversion calculation is realized through fft method and is independent of abel inversion

    另外，本文還著重推導了線積分密度分佈和徑向體密度分佈之間的傅立葉積分變換關系，並利用快速傅立葉變換實現了完全拋開abel反演公式的密度反演計算。
  2. A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm

    在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。
  3. Firstly the phase is extracted from interferogram by filtering and displacing frequency spectrum. then the wavefront and the line integral density are recovered by using fft or polynomial fitting method. lastly the radial local density distribution is calculated from the fitting curve of line integral density by the abel inversion

    首先對干涉圖進行頻譜濾波，用頻譜移頻法從干涉圖中提取相位，然後用快速傅立葉變換或多項式擬合實現波面重建，計算線積分密度，再利用abel積分變換從線積分密度的擬合曲線中反演徑向體密度分佈。
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