adjoint vector 中文意思是什麼
adjoint vector
解釋
伴隨向量-
By solving iterative the sequences, the optimal control law is obtained which consists of analytical linear feed - forward - feedback terms and a nonlinear compensation term, which is the limit of the adjoint vector sequence
通過迭代序列得到的最優撫動抑制控制律由解析的線性前饋反饋項和序列極限形式的非線性補償項組成。 -
We studied the feature representation of synergetic pattern recognition and pointed out that adjoint vector is feature representation of according prototype. furthermore, it represents not only image unique feature but also database comparative feature
論文還對協同特徵提取屬性進行了深入討論，指出伴隨向量就是原型向量的顯著特徵，同時包含了圖像獨有特徵和群體的相對特徵。 -
The characteristic approximation is used to handle the convection part along the direc - tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion ; the mixed finite element spatial approximation is employed to deal with diffusion part and approximate the scalar unknown and the adjoint vector function optimally and simultaneously ; in order to preserve the integral conservation of the method, we introduce the modified characteristic method
該方法對方程的對流部分沿流體流動的方向即特徵方向離散以保證格式在流動的鋒線前沿逼近的高穩定性，消除數值彌散現象；對方程的擴散部分採用最低次混合有限元方法離散、同時以高精度逼近未知函數及未知函數的梯度；為保證方法的整體守恆性，在格式中引入修正項 -
The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite element spatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously
此方法即為對方程的對流項沿流體流動的方向即特徵方向進行離散，從而保證格式在流動鋒線前沿逼近的高穩定性，消除了數值彌散現象，並得到了較小的時間截斷誤差；另一方面，對方程的擴散項採用混合元離散，可同時高精度逼近未知函數及其伴隨向量函數，理論分析表明，此方法是穩定的，具有最優的l ~ 2逼近精度。 -
Adjoint method provides an efficient tool to calculate the gradient vector of the cost function to the initial field
利用伴隨方法，可以求出該度量函數關于初始場的梯度向量。
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