数学变换 meaning in English
mathematical manipulation
Examples
- The mathematical transformation is fixed and the airfoil is moved to generate different airfoil geometries
数学变换是固定机翼的翼型几何移到产生不同 - Abstract : the paper drives the computer imaging mathematics transform of submarine simulat ion , the formulas that drive finally could be used for simulation directly
文摘:文章对潜艇仿真中的计算机成像数学变换公式进行推导，推导出的最终公式可直接用于仿真。 - Synthetic aperture radiometer applies the interferometric principle to sample in the spatial frequency domain and retrieves the image by fourier or other numerical transformation
综合孔径辐射计利用孔径综合原理在空间频率域中采样，通过傅立叶变换或其他数学变换获取反演亮温图像。 - Based on the representation of interval rational bezier curves and surfaces and by a serial of mathematical transformation , the degree reductions of them are converted to those of polynomials with upper bounds , then several algorithms are presented , with linear programming and optimal approximation methods . by relaxation of some constrained conditions , approximation effects of some of them are further improved
根据区间有理bezier曲线、曲面的特点，通过一系列数学变换，将其降阶问题转化为多项式的保上界降阶逼近，再应用线性规划和最优逼近方法求解，给出几种逼近算法，并探讨通过约束不等式的松弛，进一步改进逼近效果。 - Abstract : in order to solve the double parameters enveloped in the geartooth flank generating , the complicated double parameter envelope is simplified to the generating process between work - piece and imaginary crown generating gear by means of mathematical transformation . the equation of the imaginary crown generating surface and the partial derivatives are deduced , so the differential geometric parameters of the generating surface can be obtained . by analyzing the generating motion between the imaginary crown generating gear and the work - piece , all the first to third order geometric parameters of the generated tooth flank at any given point can be calculated
文摘:为了解决直接求解展成法加工中存在的复杂双参数包络问题时的困难，提出通过数学变换，将此包络问题转化为假想平面产形轮与工件之间的展成问题来进行研究.推导了假想产形面的方程和各阶偏导矢，于是可获得产形面的微分几何参数.通过分析假想平面产形轮与工件之间的展成运动，即可得到被展成齿面上任意指定点的全部一至三阶微分几何参数