Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

378
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
378
Design Example01:23

Design Example

331
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
331
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

632
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
632
Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

315
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
315
Radial System Protection01:23

Radial System Protection

96
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
96

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

[Investigation on iodine nutritional status and iodine intake levels of 7-11-year-old children in different water-iodine regions in 2024].

Wei sheng yan jiu = Journal of hygiene research·2026
Same author

Dietary Supplement with Milk that Contains Different β-Caseins Influences Gut Microbiota and Serum Metabolites in Mice.

Food science of animal resources·2026
Same author

Make uphill thermodynamics downhill in pathway design.

Trends in biotechnology·2026
Same author

Effects of Ultrasonic Treatment on the Structure and Antioxidant Activity of Conjugates Formed by Porcine Blood Meal-Derived Peptides and Hemin.

Foods (Basel, Switzerland)·2026
Same author

[Preparation process optimization of functional artificial oil bodies and prediction of their obesity-alleviating targets <i>via</i> network pharmacology].

Sheng wu gong cheng xue bao = Chinese journal of biotechnology·2026
Same author

Engineered ZIF-8 Grown on Polydopamine-Functionalized Melamine Foam for Enhanced Adsorption of Chlortetracycline Hydrochloride from Wastewater.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Research on a Regional Availability Evaluation Model for Road-Area High-Entropy Energy Based on Synergy Factors.

Entropy (Basel, Switzerland)·2026
Same journal

Atmospheric Turbulence Channel Modeling and Performance Analysis of a CO-ZP-OFDM Coherent Optical Communication System for UAV Air-to-Ground Scenarios.

Entropy (Basel, Switzerland)·2026
Same journal

Information Geometry and Asymptotic Theory for SMML Estimators.

Entropy (Basel, Switzerland)·2026
Same journal

Correlation Entropy and Power-Law Kinetics.

Entropy (Basel, Switzerland)·2026
Same journal

Research on the Contagion of Systemic Financial Risk Under the Impact of Climate Risks-From the Perspective of Complex Networks and Machine Learning.

Entropy (Basel, Switzerland)·2026
Same journal

The Statistical-Mechanical Meaning of the Wave Function of Quantum Mechanics.

Entropy (Basel, Switzerland)·2026
查看所有相关文章

相关实验视频

Updated: Jul 7, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.7K

一个由RIS辅助的通信防干扰方案,具有角度响应.

Jinpeng Wang1, Wenyu Jiang2, Kaizhi Huang2

  • 1School of Cyber Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.

Entropy (Basel, Switzerland)
|December 23, 2023
PubMed
概括
此摘要是机器生成的。

这项研究引入了一个可重新配置的角度响应智能表面 (RIS),以改善通信系统的防干扰. 这种新的方法提高了合法的信号强度,同时减弱了干扰信号,提高了通道容量.

关键词:
角度响应的角度响应防止干扰 防止干扰频道容量 频道容量 频道容量可重新配置的智能表面.

更多相关视频

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
06:51

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

7.0K
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

6.2K

相关实验视频

Last Updated: Jul 7, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

1.7K
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
06:51

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

7.0K
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

6.2K

科学领域:

  • 无线通信是一种无线通信.
  • 电磁学 电磁学 电磁学 电磁学
  • 信号处理 信号处理

背景情况:

  • 可重新配置的智能表面 (RIS) 通过优化反射系数来增强无线通信.
  • 现有的防干扰方案往往忽视了RIS反射和电磁波撞击角度之间的关键联系.

研究的目的:

  • 为使用可重新配置的智能表面 (RIS) 与角响应的通信系统提出一种新的防干扰方案.
  • 优化RIS反射系数以放大合法的信号和减弱干扰信号,从而增加频道容量.

主要方法:

  • 制定了一个优化问题,以增强合法的信号和抑制干扰信号.
  • 解决了由撞击角度和RIS反射系数之间的合引起的非凸度.
  • 采用复杂的泰勒扩展和多维复杂的二次变换 (MCQT) 来将问题转换为二次约束的二次编程 (QCQP) 问题.
  • 利用乘数交替方向方法 (ADMM) 算法来解决优化问题.

主要成果:

  • 与没有角度考虑的方案相比,带有角度响应的拟议RIS方案显著改善了防堵性能.
  • 通过优化RIS反射系数,证明有效地放大合法信号和减弱干扰信号.
  • 验证了ADMM算法的有效性在解决复杂的优化问题.

结论:

  • 在RIS中集成角响应对于无线通信系统中有效的反干扰至关重要.
  • 建议的优化策略和解决方案方法为增强通信安全性和可靠性提供了强大的框架.
  • 这项研究在RIS辅助的反干扰技术方面取得了重大进展,为更具弹性通信网络铺平了道路.