{"title":"利用变模分解设计的可变陷波滤波器降低心电信号中的电力线干扰","authors":"Haroon Yousuf Mir, Omkar Singh","doi":"10.1007/s10470-023-02200-9","DOIUrl":null,"url":null,"abstract":"<div><p>For cardiovascular disease diagnosis, the utility of the Electrocardiogram (ECG) signal is comprehensive. For accurate ECG analysis, early diagnosis and evaluation of cardiac disorders, embedded low and high-frequency noise must be eradicated from it. Baseline wandering is an example of low-frequency noise, whereas muscle artefacts and power line interference are examples of high-frequency noise. This paper presents a novel method for cancellation of power line interference that is based on variational mode decomposition (VMD) and digital filtering techniques. To accomplish an efficacious ECG denoising process, narrow-band variational mode functions (VMFs) are created by decomposing the noisy ECG signal using VMD method. The aim is to eliminate powerline interference noise (PLI) using a variable notch filter designed using these narrow-band VMFs. For cancellation of powerline interference, centre frequency of all VMFs is estimated and depending upon the presence of powerline interference, a notch filter with frequency response adjusted to the estimate obtained from VMFs is designed to remove it. Utilizing the signal-to-noise ratio (SNR) and correlation coefficient, the effectiveness of the suggested denoising method is evaluated. The proposed approach is tested on synthetic ECG signals and standard MIT-BIH arrhythmia database, demonstrating that the proposed approach reduces powerline interference noise better than the current state of art methods.</p></div>","PeriodicalId":7827,"journal":{"name":"Analog Integrated Circuits and Signal Processing","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Powerline interference reduction in ECG signals using variable notch filter designed via variational mode decomposition\",\"authors\":\"Haroon Yousuf Mir, Omkar Singh\",\"doi\":\"10.1007/s10470-023-02200-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>For cardiovascular disease diagnosis, the utility of the Electrocardiogram (ECG) signal is comprehensive. For accurate ECG analysis, early diagnosis and evaluation of cardiac disorders, embedded low and high-frequency noise must be eradicated from it. Baseline wandering is an example of low-frequency noise, whereas muscle artefacts and power line interference are examples of high-frequency noise. This paper presents a novel method for cancellation of power line interference that is based on variational mode decomposition (VMD) and digital filtering techniques. To accomplish an efficacious ECG denoising process, narrow-band variational mode functions (VMFs) are created by decomposing the noisy ECG signal using VMD method. The aim is to eliminate powerline interference noise (PLI) using a variable notch filter designed using these narrow-band VMFs. For cancellation of powerline interference, centre frequency of all VMFs is estimated and depending upon the presence of powerline interference, a notch filter with frequency response adjusted to the estimate obtained from VMFs is designed to remove it. Utilizing the signal-to-noise ratio (SNR) and correlation coefficient, the effectiveness of the suggested denoising method is evaluated. The proposed approach is tested on synthetic ECG signals and standard MIT-BIH arrhythmia database, demonstrating that the proposed approach reduces powerline interference noise better than the current state of art methods.</p></div>\",\"PeriodicalId\":7827,\"journal\":{\"name\":\"Analog Integrated Circuits and Signal Processing\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2023-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Analog Integrated Circuits and Signal Processing\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10470-023-02200-9\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analog Integrated Circuits and Signal Processing","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10470-023-02200-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}
Powerline interference reduction in ECG signals using variable notch filter designed via variational mode decomposition
For cardiovascular disease diagnosis, the utility of the Electrocardiogram (ECG) signal is comprehensive. For accurate ECG analysis, early diagnosis and evaluation of cardiac disorders, embedded low and high-frequency noise must be eradicated from it. Baseline wandering is an example of low-frequency noise, whereas muscle artefacts and power line interference are examples of high-frequency noise. This paper presents a novel method for cancellation of power line interference that is based on variational mode decomposition (VMD) and digital filtering techniques. To accomplish an efficacious ECG denoising process, narrow-band variational mode functions (VMFs) are created by decomposing the noisy ECG signal using VMD method. The aim is to eliminate powerline interference noise (PLI) using a variable notch filter designed using these narrow-band VMFs. For cancellation of powerline interference, centre frequency of all VMFs is estimated and depending upon the presence of powerline interference, a notch filter with frequency response adjusted to the estimate obtained from VMFs is designed to remove it. Utilizing the signal-to-noise ratio (SNR) and correlation coefficient, the effectiveness of the suggested denoising method is evaluated. The proposed approach is tested on synthetic ECG signals and standard MIT-BIH arrhythmia database, demonstrating that the proposed approach reduces powerline interference noise better than the current state of art methods.
期刊介绍:
Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today.
A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.