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Updated: Jul 19, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
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Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

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对非统一的光学相位阵列进行批判性评估,用于现实世界的光束转向应用

Marc de Cea, Rajeev J Ram

    Optics express
    |November 14, 2024
    PubMed
    概括

    光学相位阵列 (OPA) 提供快速光束方向,但对于自由空间光通信 (FSOC) 和光检测和距离 (LIDAR) 等应用需要特定的性能指标. 与传统设计相比,非均间隔的OPA可以提供更高的性能和更少的复杂性.

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    Polar Coordinates: Problem Solving01:27

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    Directional radiation patterns are central to antenna analysis, as they illustrate how signal strength varies with direction. These patterns are often modeled using polar plots, where the radial distance from the origin represents signal intensity at a given angle. A commonly used idealized form is the four-lobed rose curve, which captures the concept of directional beams in a simplified mathematical form.The four-lobed rose curve, described by r = cos⁡(2θ), features four symmetric lobes, each...