虛半軸 的英文怎麼說
中文拼音 [xūbànzhóu]
虛半軸
英文
imaginary semi-axis-
The symmetric values about the imaginary axis of zero - poles which the unstable process lies in the open and closed right - half plane are defined as their mirror - injection
非穩定過程在開右半平面的零極點關于虛軸的對稱值稱為該零極點的鏡像映射。An optimizing arithmetic for calculating the best - fit sphere is also proposed, the result shows better accuracy is reached comparing to " three points method ", from 107. 8umrms to 25. 66umrms. during interferometric optics test with null lens, " nonlinear errors " of the testing coordinates will be introduced. a method based on ray - tracing, nonlinear fitting and coordinate transferring is proposed to eliminate these errors
在ccos控制模型及理論計算方面,提出了一種適用於高次離軸非球面最接近球面計算的優化演算法,經計算,某矩形離軸非球面最接近球面半徑的求解精度較傳統的「三點法」有了較大的提高,理論加工余量由原來的107 . 8umrms降低到25 . 66umrms ;提出一種基於磨頭與工件的相對位移量的控制模型,並且開發了阻尼卷積迭代演算法,引入「虛擬加工」的概念進行迭代求解和參數評價。According to the virtual endoscopy automatic navigation, using the two - distance field - based 3d center path finding algorithm to find the path, adopting the cylindrical approximation of tubular organs to replace the center path by several approximate cylinders, while using distance transformation that is substituted by euclidean distance to calculate the approximate cylinder ' s axis and radius, the algorithm can save much time
摘要針對虛擬內窺鏡自動漫遊技術,利用基於雙距離場的三維中心路徑提取演算法進行路徑提取,採用管狀器官的圓柱狀近似,將中心路徑用多個近似的圓柱體代替,用距離變換代替歐式距離公式計算近似圓柱體的軸和半徑,節省了大量的計算時間。
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