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Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

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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...
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相关实验视频

Updated: Jun 4, 2025

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
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基于自相关算法的分相阵列天线校准.

Xuan Luong Nguyen1, Nguyen Trong Nhan2, Thanh Thuy Dang Thi1

  • 1Faculty of Physics, VNU University of Science, Ha Noi 100000, Vietnam.

Sensors (Basel, Switzerland)
|December 17, 2024
PubMed
概括
此摘要是机器生成的。

一个新的自相关算法在噪音条件下提供更准确的相位阵列天线校准. 与传统技术相比,这种方法改善了振幅和相位移的确定.

关键词:
幅度误差是一个错误.自相对应算法自相对应算法远场探测器探测器远场探测器这是一个相位错误的错误.阶段式阵列天线天线辐射模式的辐射模式

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科学领域:

  • * 电气工程 电气工程
  • *天线理论 *天线理论
  • * * 信号处理 信号处理

背景情况:

  • * 阶段阵列天线需要精确校准以获得最佳性能.
  • * 传统的校准方法在杂的环境中与干扰作斗争.
  • *如旋转元件电场向量 (REV) 等现有的方法在准确性上有局限性.

研究的目的:

  • * 调查并介绍一个用于分相阵天线校准的自相关算法的数学模型.
  • * 为了将拟议的自相对应方法与传统的REVmax和REVmin技术进行比较.
  • * 评估在杂环境中自相关联方法的有效性.

主要方法:

  • * 为自相关校准方法开发数学模型.
  • * 将该方法应用于使用远场扫描的分相阵列天线.
  • *与旋转元件电场矢量方法 (REVmax和REVmin) 的比较.
  • * 在3GHz时进行实验验证.

主要成果:

  • *自相对应方法在确定振幅和相位变化方面表现出更高的精度.
  • *与REV方法相比,E平面的测量峰值增益显著改善.
  • *使用自相关方法,相位误差大大减少.
  • *该方法即使在内部噪音和外部干扰的情况下也被证明是有效的.

结论:

  • * 拟议的自相对应算法为阶段阵列天线提供了更准确的校准解决方案.
  • * 它在具有噪音和干扰的具有挑战性的环境中是有效的.
  • * 适用于工厂和现场设置中的大规模相位校准.