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Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
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A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
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动态时段分配方法用于无人机组建中的确定性通信.

Junfang Xiao1, Jianming Huang2, Qin Chen3

  • 1School of Electronic Information Engineering, Chengdu Polytechnic, 610041, Chengdu, China. xiaojunfang@cdp.edu.cn.

Scientific reports
|December 3, 2025
PubMed
概括
此摘要是机器生成的。

一个新的混合CSMA/TDMA方案通过减少访问延迟和确保关键任务的确定性数据传输来改善无人机通信. 这种动态的资源分配提高了时间敏感服务的可靠性.

关键词:
在CSMA/TDMA进行交易.确定性的沟通 确定性的沟通动态时机分配的分配.在 RB-CCA 中,RB-CCA 是指 RB-CCA.无人机飞行器的形成

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科学领域:

  • 航空航天工程 航空航天工程
  • 计算机网络 计算机网络.
  • 无线通信无线通信

背景情况:

  • 无人机组成需要可靠的,低延迟的通信,用于诸如情境意识等任务.
  • 传统的静态TDMA无法满足无人机的动态网络需求.
  • 确定性数据传输对于对延迟敏感的无人机操作至关重要.

研究的目的:

  • 提出一种混合CSMA/TDMA方案,用于无人机网络中的动态资源配置.
  • 确保对时间敏感的无人机服务进行决定性的端到端数据传输.
  • 解决不确定的访问延迟,并适应服务的动态变化.

主要方法:

  • 开发了一种带有中央集中的避免碰撞 (RB-CCA) 算法的随机支持.
  • 利用马尔科夫链来分析碰撞和访问概率.
  • 设计了DYSTMap Ivy算法 (DIvyA),用于最小延迟和槽长度计算.
  • 在FPGA平台上实现解决方案,用于半物理实验.

主要成果:

  • 与现有的算法相比,RB-CCA减少了30%的空听.
  • 拟议的方案在服务传输过程中将端到端延迟减少了20%.
  • 实验结果显示端到端延迟低于5毫秒,动低于0.12毫秒.

结论:

  • 混合CSMA/TDMA方案有效支持动态节点访问和服务更改.
  • 拟议的RB-CCA和DIvyA算法显著提高了无人机的通信效率和可靠性.
  • 该解决方案实现了确定性,低延迟的数据传输,适用于关键无人机应用.