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相关概念视频

Response Surface Methodology01:16

Response Surface Methodology

181
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
181
Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

450
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
450
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

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Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
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Machines: Problem Solving I01:22

Machines: Problem Solving I

356
A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
356
Machines: Problem Solving II01:30

Machines: Problem Solving II

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
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Introduction to MATLAB01:24

Introduction to MATLAB

155
MATLAB stands for Matrix Laboratory. MathWorks developed MATLAB as a multi-paradigm numerical computing environment and proprietary programming language. It has evolved significantly over the years to become a tool utilized by engineers, scientists, and mathematicians for various tasks, including matrix calculations, developing algorithms, data analysis, and visualization. MATLAB's applications span various industries and disciplines. It's used in image and signal processing,...
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使用实用的代码书方法配置可重新配置的智能表面.

Saber Hassouna1, Muhammad Ali Jamshed2, Masood Ur-Rehman2

  • 1James Watt School of Engineering, University of Glasgow, Glasgow, UK. s.hassouna.1@research.gla.ac.uk.

Scientific reports
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PubMed
概括
此摘要是机器生成的。

这项研究优化了可重新配置的智能表面 (RIS) 以提高无线通信数据速率. 新的光束成形和功率分配方法与现有技术相比,显著提高了性能.

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科学领域:

  • 电磁波操纵是一种电磁波操纵.
  • 无线通信系统无线通信系统
  • 超材料和智能表面

背景情况:

  • 可重新配置的智能表面 (RIS) 提供对电磁信号传播的动态控制.
  • 优化RIS阶段配置对于最大限度地提高无线系统性能至关重要.
  • 现有的方法,如半确定的放松 (SDR),在计算复杂性方面面临挑战.

研究的目的:

  • 通过使用优化的RIS,研究一个单输入单输出 (SISO) 宽带系统中可实现的数据速率.
  • 开发一个新的光束成形代码库和功率分配算法,用于RIS相位优化.
  • 将拟议方法的效率和性能与SDR方案进行比较.

主要方法:

  • 开发一个新的光束成形代码书,用于选择最大信号噪声比 (SNR) 配置.
  • 利用通道状态信息 (CSI) 和选择的SNR配置进行RIS优化.
  • 在宽带系统的子载波器中实施公平的功率分配算法.

主要成果:

  • 与SDR方案相比,拟议的方法表明计算复杂性明显较低.
  • 一个优化的RIS配置导致可实现的数据速率增加了2.5倍.
  • 开发的算法有效地优化RIS阶段配置,以提高系统性能.

结论:

  • 新的RIS优化技术为无线系统提供了计算效率高和高性能解决方案.
  • 优化的RIS表面可以大幅提高宽带通信中可实现的数据速率.
  • 这种方法为未来的无线网络进步提供了一个有希望的方向.