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相关概念视频

Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

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The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
610
Reflective Property of Parabolas01:26

Reflective Property of Parabolas

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A parabola is a basic type of conic section that results from the intersection of a plane with a double-napped cone in a direction parallel to one of the cone's sides. This U-shaped curve has a distinctive reflective property: all incoming rays parallel to its axis of symmetry are directed toward a single point, known as the focus. This property is widely utilized in optical and communication technologies that require precise signal concentration.In analytic geometry, a parabola is defined as...
233
Gaussian Elimination: Problem Solving01:30

Gaussian Elimination: Problem Solving

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Systems of linear equations in several variables are pivotal in modeling complex scenarios involving multiple unknowns and constraints. Such systems are widely used in various fields to represent relationships where several conditions must be simultaneously satisfied. Each variable in the system corresponds to an unknown quantity, while each equation imposes a linear constraint, leading to a structured approach for analyzing and solving real-world problems.A system of three equations with three...
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Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

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The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
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Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

499
The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
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Transmission Line Design Considerations01:23

Transmission Line Design Considerations

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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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相关实验视频

Updated: Jan 16, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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基于GA-PSO算法和模糊性函数的2D子数组的稀疏天线阵列的优化设计.

Jian Yang1, Jian Lu2, Tong Zhu1

  • 1School of Engineering, Rocket Force University of Engineering, Xi'an 710025, China.

Micromachines
|September 27, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了全相多输入多输出 (FPMIMO) 系统中稀疏天线阵列的最佳设计. 这种新的方法使用混合基因算法-粒子群优化 (GA-PSO) 和模两可的函数来实现高效的数组设计.

关键词:
二维子光线的二维子光线模两可的功能函数.遗传算法粒子群集优化 (GAPSO) 进行优化.稀疏的天线阵列数组.

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相关实验视频

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科学领域:

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

背景情况:

  • 稀少的天线阵列可以降低复杂性和成本,同时提高光圈.
  • 全相多输入多输出 (FPMIMO) 系统从高效的阵列配置中受益.

研究的目的:

  • 在FPMIMO操作中为稀疏天线阵列提出一个新的最佳设计.
  • 为了提高全球优化性能,并适应性地调整代.

主要方法:

  • 使用混合基因算法-粒子群集优化 (GA-PSO).
  • 结合对最终数组确定的一致性函数.
  • 优化代的自适应性调整.

主要成果:

  • 在优化稀疏天线阵列方面,拟议的GA-PSO算法的有效性得到证明.
  • 成功集成模糊函数,用于精确的数组配置.
  • 通过模拟测试验证算法的有效性.

结论:

  • 拟议的GA-PSO算法为设计FPMIMO系统中稀疏天线阵列提供了一种有效的方法.
  • 适应代调整确保了强大的全球优化.
  • 这种设计有助于降低系统复杂性和硬件成本.