一个信息理论框架的不确定性量化和敏感性分析在UWB烟发射器
Yanbin Liang1, Kaiwei Wu1, Bing Yang1
1School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Sensors (Basel, Switzerland)
|February 27, 2026
概括
超宽带 (UWB) 发射器的组件公差会扭曲波形,影响性能. 本研究引入了一个信息理论框架来量化不确定性传播,并指导用于稳健系统设计的精度分配.
科学领域:
- 电气工程 电气工程
- 信息理论 信息理论
- 系统可靠性 系统可靠性
背景情况:
- 超宽带 (UWB) 烟发射器中的组件公差导致波形扭曲.
- 这些扭曲会降低关键的系统性能指标,如检测范围和范围分辨率.
- 现有的方法缺乏组件变化与运营效率之间的定量联系.
研究的目的:
- 开发一个信息理论敏感性分析框架.
- 建立量化机制,将组件变化与系统性能联系起来.
- 为了实现稳健的设计,采用驱动的精确分配策略.
主要方法:
- 基于物理的数学建模和发射器的电路级模拟.
- 在容忍变化下验证阶段恢复二极管的短暂响应.
- 应用拉丁式超立方体采样信息 (LHS-IE) 来量化不确定性.
- 引入特征交互信息 (FII) 来分析非线性参数合.
主要成果:
- 电感公差表现出放大效应,增加幅度和宽度的关节不确定性.
- 负载阻力作为一个独立的线性因素,主要影响振幅不确定性.
- 该研究量化了从组件参数到脉冲特征的不确定性传播.
结论:
- 拟议的框架将传统的容忍设计转换为以为导向的精确分配策略.
- 这种方法确保了系统的稳定性,可以应对制造制约因素.
- 它为在组件变化下优化UWB发射器设计提供了理论基础.
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