查询词典 generated subspace

In this paper, the sparse approximation inverses and eigenvalue translation based preconditioners for Krylov subspace methods are thoroughly researched by situation of research at home and abroad, their internal mechanism are studied also.

本文在国内外关于Krylov子空间方法的稀疏近似逆和基于特征值转换的预处理方法研究状况的基础上，对它们进行了进一步研究，探讨了它们的内部机理。

The invariance property of the Krylov subspace is used to solve the large sparse complex symmetric linear system.

其中，利用Krylov子空间不变性求解离散得到的大型稀疏复对称线性方程组。

The purpose of this paper is to research subspace-based blind adaptive multiuser detection.

本文主要研究基于子空间的盲自适应多用户检测技术，主要工作概括如下： 1。

Under above conditions, the m-refinable spline must be a product B-spline if its shifts form the Riesz bases of closed subspace spaned by themselves.

本文方法构造的多元非张量积小波是易于进行提升分解的，我们给出了对应的提升分解方法。

This paper presents a new order-selection algorithm for exponentially damped sinusoids model based on subspace and structured total least norm method.

本文针对指数阻尼正弦信号模型提出了一种新的基于子空间和结构总体最小范数的阶选择算法。

The channel estimation is formed by projecting a give user's spreading waveform into the estimated noise subspace and nulling the projection.

利用信号向量在噪声子空间的投影为零的性质，可以估计出信道的参数。

Key words:singular value decomposition;pseudo signal subspace;time-frequency distribution;Radon-STFT transform;rotation of time-frequency plane

本文提出一种Radon-STFT变换，该变换能鲁棒地确定LFM信号在时频平面上的倾斜角度，因而可以有效地克服文［3］的缺憾。

It works by focusing a quantum field through a deflector dish to generate massive changes in local space curvature; this creates a subspace tunnel, which is projected in front of the vessel.

它的工作原理是是通过偏导仪盘聚焦量子场来急剧改变局部空间曲率；从而产生一道在飞船前端投射出的子空间通道。

In order to calculate the matching degree of a shape to target image, shape free texture subspace reconstruction error was adopted as matching criterion.

为确定形状对纹理的匹配程度，本文提出了基于形状无关纹理子空间重构残差的匹配度评定标准。

The velocity constraint subspace of each branch chain was obtained by means of solving the screw system of each branch chain of 3-PTT parallel mechanism.

通过求解3-PTT并联机构各支链的螺旋系得到各支链的速度约束子空间。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。