查询词典 inversion point

A structure of space-time diversity virtual double-route weighting interference mitigating is proposed, and the corresponding practical algorithm is derived in detail using block matrix inversion formula and matrix inversion theory for mitigating interference signals from both other cells and other users of local cell in the DS-CDMA up-link communication case. Performances of such algorithm are thoroughly analyzed through simulation and analytical results. The up-link and down-link channel characters and their relationship of DS-CDMA communication system are thoroughly analyzed, and the relationship of space-time diversity weighting matrix between time division duplexing and frequency division duplexing these two different transmission ways is derived.

本论文深入地比较了DS-CDMA通信系统的上传情形与下传情形的信道特性及其它们相互之间的关系；深入地分析并得到了时分双工和频分双工两种不同的传输模式下的上传情形与下传情形的空时分集权系数矩阵之间的数量关系，从而使得能够利用在基站端所拥有的上传情形的空时分集接收权系数矩阵信息以及其他信息在基站端直接形成空时分集发射权系数矩阵；推导了下传情形移动用户接收机端的最优组合接收策略及其算法；进一步地，对时分双工传输模式下的下传情形的通信系统性能和频分双工传输模式下的下传情形的通信系统性能进行了深入的比较仿真研究。

We establish the relation of inversion formulas among generalized Radon transform with known weight functions, the exponential Radon transform and classical Radon transform, furthermore obtain approximate inversion formula of the exponential Radon transform, the idea of approach above is applied to contour reconstruction and is generalized to n-dimentional euclidean space case. We discuss the support theorem, range condition of the exponential Radon transform.

本文建立了带权广义Radon变换、指数型Radon变换与古典Radon变换反演公式的关系，从而得到指数型Radon变换的近似反演公式，并且应用这种思想方法于轮廓重构，并将这一结果推广到任意维欧氏空间的情形；讨论了指数型Radon变换的支集定理及值域条件。

Based on the principle of inversion analysis , applications of inversion analysis in welding field including material properties, heat source model, boundary conditions were introduced.

在阐述了反演分析原理的基础上，介绍了国内外焊接领域，包括材料性能，热源模型，边界条件等问题中反演分析的应用，及反演分析各种算法的原理及特点。

This article first on to the topic background, the topic object basic survey and the topic research goal has given brief showing, then has made a detailed elaboration to the AC-DC-AC inversion principle of work, emphatically has analyzed based on the AC-DC-AC inversion control principle as well as the SPWM profile several productions method.

本文首先就对课题的背景，课题对象的基本概况以及课题研究的目的做了简要的说明，然后对AC-DC-AC逆变器的工作原理做了一个详细阐述，着重分析了基于AC-DC-AC逆变器的控制原理以及SPWM波形的几种生成方法。

Finally, seismic Rayleigh wave velocity inversion for P-SV wave S-statics isstudied, which is mainly including the flowing contents: the separation of Rayleighwave signals from seismic data, the pickup of Rayleigh dispersion curves, seismicRayleigh wave velocity inversion, and the principle and the processing flow ofresolving P-SV wave S-statics.

最后研究了地震瑞雷面波速度反演求取P-SV波横波静校正量，包括地震瑞雷波信号分离方法、地震瑞雷波频散曲线拾取方法、地震瑞雷波速度反演以及P-SV波横波静校正量求取方法和处理流程。

Next, the author discussed the application problem of the inversion, researched the controllable effects in inversion from different viewpoints.

可信度是反演中无法回避的问题，通常的反演需要做很多的试验才能获得可用的结果。

Formulae for inversion of dual magnetic interfacial pattern and a method for solving the problem of inversion divergence were proposed.

重新推导了正反演公式，提出了双磁性界面模式正反演公式和解决反演发散问题的方法。

Sharp boundary inversion is a relatively difficult problem in magnetotelluric and other geophysical inversion, which has been studied by many researchers.

尖锐边界反演是大地电磁及其他地球物理反演中的一个较难解决的问题，目前有不少专家正对这方面进行研究。

However, the inverse algorithm is very robust. Through the study of inversion simulation, we believe this new approach to solve the inversion problem of magnetotelluric sounding will bring new hope and it worth in-depth studying.

然而该反演方法是非常稳健的，通过反演模拟研究，我们认为这种全新的反演方法给大地电磁测深反演问题的解决带来了新的希望，值得深入研究

In this paper, the problem of simultaneous inversion for earthquake location and velocity structure is discussed, and the difficultes encountered in the inversion are discussed.

本文讨论并处理了震源位置和速度结构联合反演中的问题和困难。正交投影算子的引入不仅使这一问题的数学描述简洁，物理解释清楚，而且参数分离之后，与震源有关的方程组是相容的。

These are places without aristocratic baggage; egalitarian places open to talent, self-improving, engaged in learning and innovation through networks that were at once competitive and cooperative.

这些地方没有贵族遗风作祟，而且对于那些有天分的人是开放的平等之地，这些人善于通过那些曾经很具有竞争力与合作精神的关系网进行自我提高以及学习创新。

Christine: You don't want to see me?

你不想见我？