对导电心内通信不平衡阻抗通道的分析和电路设计
IEEE transactions on biomedical circuits and systems
|March 3, 2025
概括
导电性心内通讯 (CIC) 研究面临的挑战是由于不同的实验条件. 本研究引入了一种新的测量电路,通过减轻阻抗失衡效应来准确地描述CIC通道.
科学领域:
- 生物医学工程 生物医学工程
- 可以植入的医疗器械
- 无线通信无线通信
背景情况:
- 导电性心内通讯 (CIC) 使用心脏组织进行短距离无线通信,这对于无多室节奏至关重要.
- 由于实验设置变化和测量方法差异,现有的心内通道表征不一致.
- 可靠的道表征对于推进CIC技术至关重要.
研究的目的:
- 调查不同测量设备和条件对CIC内心通道表征的影响.
- 为了澄清阻抗不平衡如何影响增强测量结果在CIC.
- 为CIC频道开发一个更准确,更可靠的增益测量方案.
主要方法:
- 设计了一个具有高常态拒绝的弱信号测量电路,以解决阻抗不平衡.
- 构建了一个相当的电路模型来模拟心脏生物力学阻抗,并分析失衡效应.
- 开发了一种高常态排斥-高电阻差分测量电路,以抑制干扰.
主要成果:
- 测量设备和隔离方法显著影响合电路特性,导致结果变化高达16.65dB.
- 设计的测量电路有效地减少阻抗不平衡的干扰.
- 该研究确定了CIC先前实验结果中差异的来源.
结论:
- 实验设置和测量技术极大地影响了CIC通道的表征.
- 拟议的测量电路为CIC增强测量提供了更准确,更可靠的方法.
- 这项工作为CIC的一致和可靠的研发提供了基础.
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