设计和实施基于FPGA的低功耗最佳多频段过器,具有Spline功能,用于消除ECG信号的噪声
1Instrumentation and Control, L. D. College of Engineering, Ahmedabad, India.
Computer methods in biomechanics and biomedical engineering
|December 12, 2023
概括
本研究介绍了一种低功耗的FPGA过器,使用Spline插值来有效地消除心电图 (ECG) 信号的噪声. 优化过器在实时生物医学应用中实现了卓越的性能.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 数字硬件设计数字硬件设计
背景情况:
- 电心电图 (ECG) 信号对于诊断心脏病至关重要,但通常会被噪音破坏.
- 有效的降噪对于准确的心电图分析和可靠的医学诊断至关重要.
研究的目的:
- 设计和实施基于FPGA的低功耗最佳多频段过器,以消除ECG信号的噪声.
- 为了利用Spline功能,在多个频段中平稳地插入过器系数.
- 用标准指标评估过器的性能,并比较不同的架构.
主要方法:
- 利用最小平均方位 (LMS) 算法来推导不同频段的最佳过系数.
- 采用Spline功能来插入系数,确保频段之间的无过渡.
- 在低功耗FPGA (Artix 7) 平台上实现过器,用于实时处理.
- 使用ECGID数据库和基准指标 (SNR,MSE,CC,PRD) 验证的表现.
主要成果:
- 与基于SNR,MSE,CC和PRD的现有方法相比,拟的过器表现出更高的性能.
- 在Artix 7 FPGA上,串行架构实现了低芯片内功耗 (0.158W).
- 该设计使用了最小的硬件资源:1932个LUT,5299个Flip-Flop和1个DSP块.
结论:
- 开发的基于FPGA的最佳多频段过器具有Spline功能,对于ECG信号消噪非常高效和有效.
- 低功耗和实时处理能力使其适合集成到紧的生物医学设备中.
- 这种方法为先进的可穿戴和便携式心脏监测系统提供了一个有希望的解决方案.
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