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fast路由器,fast路由器如何设置(电子科技大学学士学位论文撰写范例-英文)

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  • 1、fast路由器如何设置
  • 2、电子科技大学学士学位论文撰写范例-英文

1、fast路由器如何设置

首先打开浏览器,然后输入“192.168.1.1”,再按“enter”键。其次输入管理员密码,点“确定”。最后点开“路由设置”界面,按提示进行设置就可以了。

无线路由器可以将宽带共享给多个终端,同时为内网电脑、手机、笔记本等终端提供有线、无线的网络接入。没有使用路由器时,电脑直接连接宽带上网,现在使用路由器共用宽带上网,则需要用路由器来直接连接宽带。根据入户宽带线路的不同,可以分为网线、电话线、光纤三种接入方式。

打开电脑桌面上的IE浏览器,清空地址栏并输入路由器管理IP地址(192.168.1.1或falogin.cn),回车后弹出登录框。部分路由器需要输入管理用户名、密码,均输入admin即可。进入路由器的管理界面后,点击 设置向导,点击 下一步。

上网方式选择 PPPoE(ADSL虚拟拨号) ,点击 下一步。在对应设置框填入运营商提供的宽带账号和密码,并确定该账号密码输入正确。SSID即无线网络名称(可根据实际需求设置),选中 WPA-PSK/WPA2-PSK 并设置PSK无线密码,点击 下一步。部分路由器设置完成后需要重启,点击重启即可。

2、电子科技大学学士学位论文撰写范例-英文

电 子 科 技 大 学

UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

学士学位论文

BACHELOR THESIS

fast路由器,fast路由器如何设置(电子科技大学学士学位论文撰写范例-英文)

论文题目

学 院

专 业

学 号

作者姓名

指导教师



摘 要

为了适应日益增长的宽带信号和非线性系统的工程应用,用于分析瞬态电磁散射问题的时域积分方程方法研究日趋活跃。本文以时域积分方程时间步进算法及其快速算法为研究课题,重点研究了时间步进算法的数值实现技术、后时稳定性问题以及两层平面波算法加速计算等,主要研究内容分为四部分。

……

关键词:时域电磁散射,时域积分方程,时间步进算法,后时不稳定性,时域平面波算法



ABSTRACT

Revealed by the Calderόn relation and the Calderόn identities in electromagnetic theory, the properties and relation of different integral operators in the computational electromagnetics (CEM) are utilized to construct the Calderόn preconditioning techniques, which are applied in the integral-equation-based methods in this thesis. A thorough and systematic research has been accomplished to cover the Calderόn preconditioning techniques for the perfect electric conductor (PEC) and the dielectric cases. For the PEC case, the Calderόn preconditioning for the electric-field integral equation (EFIE) at mid, low, and high frequencies are constructed and studied. For the dielectric cases, the Calderόn preconditioning for the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) integral equation are investigated, and the Calderόn technique for the N-Müller integral equation is developed. Moreover, the accuracy improving technique for the second-kind Fredholm integral equation for both PEC and dielectric cases is also studied in this thesis.

Keywords: Electromagnetic scattering and radiation, surface-integral-equation-based Methods, Calderόn preconditioning methods, numerical accuracy, Fred-holm integral equations of the second kind



Contents

Chapter 1 Introduction. 1

1.1 Research Background and Significance. 1

1.2 State of Arts. 1

1.3 Contents and Innovations of the Thesis. 2

1.4 Outline of the Thesis. 2

Chapter 2 Theoretical Basics. 3

2.1 Integral Equations in Electromagnetics. 3

2.2 270 MHz Plan Wave Excitation. 3

2.3 The Solution of Integral Equations in Electromagnetics. 4

2.3.1 General Principle of the Method of Moments. 4

2.3.2 Geometrical Modeling and Discretization of Object 4

2.3.2.1 Planar Triangular Model 4

2.3.2.2 Curvilinear Triangular Model 4

2.3.3 The Choice of Basis Functions. 5

2.3.3.1 Planar RWG Basis Functions. 5

2.3.3.2 Curvilinear RWG Basis Functions. 6

2.3.4 The Solution of Matrix Equations. 6

2.3.4.1 Direct Algorithms. 6

2.3.4.2 Iterative Algorithms. 6

2.4 Summary. 6

Chapter 3 Calderόn Preconditioner at Mid Frequencies. 7

3.1 Introduction. 7

3.2 Calderόn Relation and Calderόn Identities. 7

3.3 Calderόn Preconditioner at Mid Frequencies. 7

3.4 Numerical Examples. 7

3.5 Summary. 7

Chapter 4 Calderόn Preconditioning Technique for N-Müller. 8

4.1 Introduction. 8

4.2 N-Müller Integral Equations. 8

4.3 The Derivation of N-Müller Equations. 8

4.4 The Discretization of N-Müller Equations. 8

4.5 Numerical Examples. 8

4.6 Summary. 8

Chapter 5 Conclusions. 9

5.1 Concluding Remarks. 9

5.2 Future Work. 9

Acknowledgements. 10

References. 11

Research Results Obtained During the Study for Master Degree. 12



Chapter 1 Introduction

1.1 Research Background and Significance

Integral-equation-based numerical methods combined with fast algorithms are capable of solving electromagnetic problems of complex structures and material properties with a good accuracy and a high efficiency. They are widely used in a variety of engineering applications, such as the efficient analysis of three dimensional radar scattering problems, the simulation of the input impedance and the radiation properties of antenna systems, the calculation of the input response and the transmission efficiency of microwave circuits, the evaluation of the electromagnetic interference (EMI) between complex electromagnetic systems, and the computer aided electromagnetic compatibility (EMC) designs. The versatility, capability, accuracy and efficiency of the integral-equation-based methods have made them an important and cost effective approach in the analysis and design of electromagnetic problems and applications.

1.2 State of Arts

From the 1960s, the numerical methods of electromagnetic analysis have been fast developed because of their versatility and flexibility. Many well-known numerical methods have been introduced during that time, including the finite element method (FEM) (Chew, Jin, Michielssen et al, 2000) and the finite difference time domain method (FDTD) (Sheng Xinqing, 2004; Wang Binzhong, 2001), which are based alt="fast路由器,fast路由器如何设置(电子科技大学学士学位论文撰写范例-英文)" src="https://p3.toutiaoimg.com/pgc-image/e2988feaab2d47669634f5ae4f37b259~tplv-tt-large.image" />

Figure 2-1 The sketch of a curvilinear triangular element. (a)The curvilinear triangle in the coordinate system; (b) The curvilinear triangle in the coordinate system

Using the following coordinate transformation, the curvilinear triangle in the rectangular coordinate system, as shown in Figure 2-1(a), can be mapped alt="fast路由器,fast路由器如何设置(电子科技大学学士学位论文撰写范例-英文)" src="https://p3.toutiaoimg.com/pgc-image/3b7ec12671804663b64ecce20cb73ae3~tplv-tt-large.image" />

资料译文

基于多载波索引键控的正交多路复用系统的误码率上界

二.基于多载波索引键控的正交频分多路复用系统模型

我们考虑一个端到端的M-QAM,Nc子载波的基于多载波索引键控的正交频分多路复用系统有n个簇,每个簇有N个子载波(Nc=nN)。M-QAM的符号流经过串并转换之后每n个符号组成一个相量

是和传统正交频分多路复用一样是用来调制子载波的,但是不同的是只有这n个活跃子载波进行了调制。……

……


[①]

[②]

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