查询词典 inversion problem

In this paper, we consider the following computing method of tridiagonal matrix:(1) decoupling of linear equation;(2) determination of determinant and eigenvalue-eigenvector relation;(3) matrix inversion.

二引宫在数值计算中，有许多问题足后归结为三对角矩阵的计算涸此研究它们的计算方法是有意义的。此外，有些三对角阵的计算方法可以做为带状阵计算的借鉴。

Firstly a fast direct computing 3kP algorithm in field was deduced,which only needed one inversion;the new double base number chain based on 1/2 and 3 could be integrated with high-speed direct computing 3kP and halving algorithm.Scalar multiplication based on the new chain only employed point addition,halving algorithm,triplication and direct...

在底层域推导出直接计算3kP的快速算法，该算法只需一次求逆；新设计的以1/2和3为基的双基数编码可结合高效的直接计算3kP和折半运算，基于该双基数编码的标量乘算法只涉及到点加运算、折半运算、三倍点和直接计算3kP，底层域运算复杂性得到降低，在NIST推荐的椭圆曲线上比Dimitrov算法效率提高70%以上，比Wong方法提高10%以上。

Considering the uncertainness and nonlinearity of the model, a method combining Dynamic Inversion with Quantitative Feedback Theory is used to design a robust controller for attitude loop of the unmanned helicopter.

然后针对该无人机数学模型的不确定性和非线性，采用动态逆和定量反馈理论相结合的方法设计了该无人机姿态回路的鲁棒控制器。

By adopting the strategy that the different components of the residuals and the noise are approximated by uncorrelated random variables after the SIC,the complexity of the algorithm can be greatly reduced as the matrix inversion for MMSE is not necessary.

该算法通过将软干扰消除后的残余干扰和噪声的各分量近似为不相关的随机变量，使得在MMSE滤波时不必矩阵求逆，从而大大降低了计算复杂度。

And the ultimate inversion of good, his refussal to unmake the Silmarils in order to remake the Trees, leads him and his people to disastrous fragmentation.

他最不义的是不愿为了挽救双树打碎宝钻，却让他和他的人民走入水深火热的分裂。

The inversion approach has advantagesof ensur ing reliability of pseudo-impulse response , reducing non-uniqueness solution of unstable equation and evaluating uniqueness of solution.

该联合反演方法确保了伪脉冲响应的可靠性，缩小了解的非唯一性，并能评价解的唯一性程度。

But sometimes there is an unusual weather condition called a temperature inversion.

但有时出现一种异常的天气状况，叫做温度逆增。

In this paper, the theory and method of crust and upper mantle study with surface waveform inversion is systematically studied.

本文对中国及邻区地壳上地幔三维S波速度结构面波波形反演的理论与方法进行了系统的研究。

Three dimensional velocity structure of crust and upper mantle in China and its adjacent regions by surface waveform inversion.

3中国大陆及邻区的地壳上地幔S波速度结构面波波形反演。

The elite pole vaulter perhaps relies on the visual information to catch the timing of swing to inversion.

本研究推测此选手应是用视觉讯息决定悬垂后开始摆上的时机。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。