基于进化优化的下降自适应过器用于心电图信号中的噪声没收
Shubham Yadav1, Suman Kumar Saha2, Rajib Kar3
1Department of Computer Science and Engineering, C. V. Raman Global University, Bhubaneswar, Odisha, India. shubham.ydv@cgu-odisha.ac.in.
Physical and engineering sciences in medicine
|September 1, 2025
概括
这项研究引入了群集智能算法,以优化适应式噪声取消器 (ANC) 清理心电图 (ECG) 信号. 通过减少噪音和人工物, 提议的方法显著提高了心电图信号质量.
科学领域:
- 生物医学工程
- 信号处理
- 计算智能
背景情况:
- 电心电图 (ECG) 信号对于心脏诊断至关重要,但在记录过程中经常受到噪音和人工物的影响.
- 信号退化会损害心脏状况评估的准确性,需要有效的噪音消除技术.
研究的目的:
- 提出和评估基于群集智能的最佳调整的适应式噪声取消器 (ANC) 来消除心电图信号.
- 通过海优化算法 (SOA),NLSHADE和HGSA优化ANC的性能进行比较.
主要方法:
- 使用SOA,NLSHADE和HGSA优化ECG信号的ANC的开发.
- 使用公开的心电图数据集 (ADB,QTDB) 进行验证,这些数据集在各种SNR中被添加式白色高斯噪声损坏.
- 使用百分比根平均平方偏差 (PRD),平均平方误差 (MSE) 和信号对噪声比 (SNR) 改进等指标进行性能评估.
主要成果:
- 拟议的SOA辅助ANC以3.40E-03的PRD和1.35E-11的MSE实现了卓越的性能.
- 平均SNR改进为10.986dB,超过了基准算法.
- 使用Wilcoxon签名等级测试进行的统计验证证实了SOA辅助ANC的有效性.
结论:
- 群集智能优化,特别是SOA,为提高心电图信号质量提供了强大的方法.
- 拟议的ANC有效地消除了人工物,提高了心脏病诊断的准确性.
- 这项技术在临床应用中的生物医学信号处理方面取得了重大进展.
相关概念视频
01:29Electrocardiogram
3.2K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
3.2K
01:28Electrocardiogram Fundamentals
868
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
868
01:25Correlation between ECG and Cardiac Cycle
8.3K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
8.3K
01:25Instrumentation Amplifier
695
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
695
01:22Upsampling
309
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
309
01:20Downsampling
251
When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
251