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相关概念视频

Transmission Line Design Considerations01:23

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Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
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The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
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The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
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Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
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基于毫米波WiGig的实验性回程网络数据集

Tânia Ferreira1,2, Duarte Raposo1, Alexandre Figueiredo1

  • 1Instituto de Telecomunicações, Aveiro 3810-193, Portugal.

Data in brief
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概括
此摘要是机器生成的。

毫米波 (mmWave) 无线回程提供高速,但与障碍物作斗争. 本研究分析了来自户外IEEE 802.11ad网络的数据集,以了解受阻条件下的性能影响.

关键词:
5G是什么意思? 5G是什么意思?802.11adad 这就是802.11ad.后续运输网络的回程网络.阻塞 阻塞是指阻塞.户外网络 户外网络在WiGig上使用WiGig.

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科学领域:

  • 无线通信无线通信
  • 5G技术 5G技术是什么?
  • 网络性能分析 网络性能分析

背景情况:

  • 毫米波 (mmWave) 无线回程是5G光纤的灵活,经济高效的替代方案.
  • 像IEEE 802.11ad这样的毫米波协议容易受到阻碍,限制了视线 (LOS) 操作.
  • 障碍物显著降低吞吐量,并可能导致链路故障,影响关键应用程序.

研究的目的:

  • 评估不同阻塞类型和持续时间对5G回程的毫米波WiGig网络的影响.
  • 为了解真实世界的毫米波网络行为提供一个有价值的数据集.
  • 确定毫米波技术在无线回程场景中的可行性.

主要方法:

  • 从一个在户外部署的实验IEEE 802.11ad毫米波网格网络收集了一组数据.
  • 收集多层数据,包括MAC,PHY和网络信息.
  • 在正常,短期被屏蔽和长期被屏蔽的LOS场景下评估网络性能.

主要成果:

  • 该数据集提供了对不同阻塞条件下的WiGig网络行为的见解.
  • 在阻塞事件期间,在PHY,MAC和传输层中表征性能.
  • 量化了不同阻塞时间对网络吞吐量和稳定性的影响.

结论:

  • 了解阻碍影响对于毫米波无线回程的可行性至关重要.
  • 收集的数据集是研究人员和专业人士的宝贵资源.
  • 这项工作有助于优化毫米波网络设计,以实现可靠的5G回程运输.