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How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
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相关实验视频

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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
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通过在LOS和NLOS条件下的基于RSS的进化优化来增强光学可见光定位.

Pankaj Pathak1, S Sharavanan2, M Karthikeyan3

  • 1Symbiosis Institute of Digital and Telecom Management (SIDTM), Symbiosis International (Deemed University), Pune, India. pankajpathak@sidtm.edu.in.

Scientific reports
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概括
此摘要是机器生成的。

这项研究通过使用遗传和粒子群优化算法来提高可见光定位准确度,以尽量减少错误. 结果显示,与传统技术相比,这些方法显著减少了定位不准确性.

关键词:
遗传算法 遗传算法 遗传算法最小平方估计的估计.粒子群算法 粒子群算法定位定位 定位定位 定位定位无线光学通信无线光学通信

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科学领域:

  • 光学通信是一种光学通信.
  • 无线定位系统是无线定位系统.
  • 室内导航 室内导航

背景情况:

  • 可见光定位 (VLP) 为基于射频的定位提供了一个低成本,安全的替代方案.
  • 使用收到信号强度 (RSS) 算法的现有 VLP 方法由于噪声和多路径效应而遭受重大错误.
  • 基于RSS的VLP中的线性近似引入了进一步的不准确性.

研究的目的:

  • 调查和减少VLP系统中的定位错误.
  • 为了将进化算法的有效性与传统最小平方估计进行比较,以尽量减少错误.
  • 分析各种参数对VLP准确性的影响.

主要方法:

  • 使用接收信号强度 (RSS) 算法定位在模拟的6x6x4立方米房间内.
  • 实现了基因算法 (GA) 和粒子群优化 (PSO) 以尽量减少定位错误函数.
  • 模拟场景包括视线 (LOS) 和非视线 (NLOS) 条件,并分析了LED距离,传输功率,接收器高度和反射的影响.

主要成果:

  • 与最小平方估计相比,GA和PSO显著减少了定位错误.
  • 传输功率的增加和发射器的数量减少了定位错误.
  • 更高的接收器高度和反射的存在增加了定位错误.
  • 实现了0.3493米 (LOS) 和0.4461米 (NLOS) 的根平均平方误差 (RMSE).

结论:

  • 像GA和PSO这样的进化算法在提高VLP准确性方面是有效的.
  • 优化LED放置,传输功率和最小化反射对于提高VLP性能至关重要.
  • 提出了一种选择高功率LED的方法,以进一步减少定位错误.