无人机辅助干扰对IRS增强的FSO系统的影响:一个马流和指向错误的角度
Optics express
|November 11, 2025
概括
这项研究增强了使用智能反射表面 (IRS) 防止干扰的自由空间光学 (FSO) 通信系统. 多元件IRS显著提高了防干扰和防色性能,提高了数据速率和可靠性.
科学领域:
- 光学通信系统 光学通信系统
- 无线通信安全 无线通信安全
- 信号处理 信号处理
背景情况:
- 自由空间光学 (FSO) 系统面临大气动荡,指向错误和干扰等挑战.
- 智能反射表面 (IRS) 为提高FSO性能提供了一个有前途的解决方案.
- 动态无人飞行器 (UAV) 辅助干扰对FSO链路构成了复杂的威胁.
研究的目的:
- 调查IRS增强的FSO系统在Gamma-Gamma色下以指向错误和无人机干扰的性能.
- 开发一个全面的通道模型,整合大气流,指向错误和合法和干扰通道的路径损失.
- 分析移动干扰器新型到达角度 (AoA) 波动模型的影响.
主要方法:
- 为IRS增强的FSO系统开发一个全面的道模型.
- 为中断概率 (OP),平均位错误率 (ABER) 和ergodic容量的封闭形式和非对称表达式的导出.
- 研究异质检测 (HD) 和强度调制/直接检测 (IM/DD) 技术.
- 使用蒙特卡洛 (MC) 模拟的理论模型的验证.
主要成果:
- 多元件IRS配置通过空间多样性提供了显著的反干扰和反色功能.
- 增加IRS元素大大降低了ABER (高达六个订单),并提高了ergodic容量 (增加了13倍).
- 在干扰场景中,异质检测 (HD) 性能优于强度调制/直接检测 (IM/DD).
- 美国国税局的优化有效地减轻了环境损害 (如雾) 和几何限制.
结论:
- 美国国税局增强的FSO系统在应对大气损害和干扰方面表现出强的性能.
- 美国国税局元素的数量是实现实质性绩效增长的关键因素.
- 在不利的条件下,HD提供了与IM/DD相比的优越弹性.
- IRS技术为优化FSO通信可靠性和安全性提供了灵活的解决方案.
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