查询词典 affine

In mis thesis, the problem of adaptive control for affine nonlinear system is studied based on the global approximation of neural network.

本文利用神经网络的全局近似能力，研究了仿射非线性系统的自适应控制问题。

An improved image recognition and registration algorithm based on convex hull and affine invariant was presented.

提出了一种新的基于凸壳和仿射不变量的图像识别和配准的方法。

For S-box, the period of affine transformed pair is 4, the period of iterative-output is less than 88 and algebraic expression has only 9 items.

针对S盒的仿射变换对周期为4，迭代输出周期不大于88，而且代数表达式只有9项的缺陷提出了改进方案，并构造新的S盒。

This paper studies the construction principle and main algebraic properties of AES S-box,points out the S-box has these characteristics that periods of affine transformed pair is 4,periods of iterative-output is less than 88,strict avalanche criterion distance is 432,the algebraic expression has only 9 items and so on.

研究了AES S盒的构造原理和主要代数性质，指出了AES S盒的仿射变换对周期为4，迭代输出周期不大于88，严格雪崩准则距离为432，代数表达式只有9项等。

Based on these characteristics, an improved S-box was constructed, with period of affine transformed pair as 16, period of iterative-output as 256 and algebraic expression of improved S-box and InvS-box as 252 items and 254 items respectively.

该改进S盒具有周期16仿射变换对，迭代输出周期为256，而且S盒和逆S盒代数表达式项数分别达到252项和254项。

Applying the techniques of real radical ideal, P-radical ideal , decomposition of semi-algebraic set in ( [72] ), affine Hilbert polynomial and B-net form of polynomials on simplex, this paper obtains two theorems of real C〓 piecewise algebraic variety dimensions and the real Nullstellensatz in C〓 spline ring.

4：应用多项式在单纯形上的B-网形式以及文献（[72]）中的实根理想，锥根理想，半代数簇分解定理，本文得出了实C〓分片代数簇的二个维数定理和C〓样条空间的实零点定理。

The potential produced by a charge distribution on the self affine set and its analytic properties are studied.

研究了关于自仿集上电荷分布的势论及有关分析性质。

This paper proposes a novel algorithm of Feature Match Based on Corner Affine Invariant. It selects corners as extracting feature of the image matching, and these corners are characterized by their orientation and angular width.

该方法是使用角作为图像匹配选取的特征，通过仿射不变处理来消除图像缩放、扭曲、旋转和平移产生的影响，实验表明，该算法具有良好的匹配性能，可以对差异较大的图像对进行特征匹配

The analysis of affine approximation error shows that the proposed method can achieve sub-pixel accuracy when the surface does not curve too much.

文中对仿射变换近似带来的精度损失进行了分析，证明该方法能够达到分象素的精度。

It has been widely used in recent years, for it not only preserves several advantages of B-spline surface, especially the affine- invariance, but also has some special advantages such as adaptability to arbitrary topology which parameter surface doesn't have.

它不仅具备B样条曲面仿射不变性等良好性质，还具有参数曲面所没有的任意拓扑适应性等特点，因而近年来得到了广泛的应用。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。