PMID- 35271105 OWN - NLM STAT- MEDLINE DCOM- 20220314 LR - 20220317 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 22 IP - 5 DP - 2022 Mar 2 TI - The Identification of ECG Signals Using WT-UKF and IPSO-SVM. LID - 10.3390/s22051962 [doi] LID - 1962 AB - The biometric identification method is a current research hotspot in the pattern recognition field. Due to the advantages of electrocardiogram (ECG) signals, which are difficult to replicate and easy to obtain, ECG-based identity identification has become a new direction in biometric recognition research. In order to improve the accuracy of ECG signal identification, this paper proposes an ECG identification method based on a multi-scale wavelet transform combined with the unscented Kalman filter (WT-UKF) algorithm and the improved particle swarm optimization-support vector machine (IPSO-SVM). First, the WT-UKF algorithm can effectively eliminate the noise components and preserve the characteristics of ECG signals when denoising the ECG data. Then, the wavelet positioning method is used to detect the feature points of the denoised signals, and the obtained feature points are combined with multiple feature vectors to characterize the ECG signals, thus reducing the data dimension in identity identification. Finally, SVM is used for ECG signal identification, and the improved particle swarm optimization (IPSO) algorithm is used for parameter optimization in SVM. According to the analysis of simulation experiments, compared with the traditional WT denoising, the WT-UKF method proposed in this paper improves the accuracy of feature point detection and increases the final recognition rate by 1.5%. The highest recognition accuracy of a single individual in the entire ECG identification system achieves 100%, and the average recognition accuracy can reach 95.17%. FAU - Li, Ning AU - Li N AD - School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China. FAU - Zhu, Longhui AU - Zhu L AUID- ORCID: 0000-0002-9738-1545 AD - School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China. FAU - Ma, Wentao AU - Ma W AUID- ORCID: 0000-0002-2781-1693 AD - School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China. FAU - Wang, Yelin AU - Wang Y AD - School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China. FAU - He, Fuxing AU - He F AD - School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China. FAU - Zheng, Aixiang AU - Zheng A AD - School of Humanities and Foreign Languages, Xi'an University of Technology, Xi'an 710048, China. FAU - Zhang, Xiaoping AU - Zhang X AUID- ORCID: 0000-0003-0995-4989 AD - Department of Electronic, Electrical, and Systems Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK. LA - eng GR - 52177193/National Natural Science Foundation of China/ GR - 2022GY-182/Key Research and Development Program of Shaanxi Province/ GR - (Grant No. [2018]5046,[2019]157/China Scholarship Council (CSC) State Scholarship Fund International Clean Energy Talent Project/ GR - XTCX202007/Open Research Fund of Jiangsu Collaborative Innovation Center for Smart Distribution Network, Nanjing Institute of Technology/ PT - Journal Article DEP - 20220302 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM MH - Algorithms MH - Electrocardiography/methods MH - *Signal Processing, Computer-Assisted MH - *Support Vector Machine MH - Wavelet Analysis PMC - PMC8915117 OTO - NOTNLM OT - electrocardiogram identification OT - improved particle swarm optimization OT - parameter optimization OT - support vector machine OT - unscented Kalman filter OT - wavelet transform COIS- The authors declare no conflict of interest. EDAT- 2022/03/11 06:00 MHDA- 2022/03/15 06:00 PMCR- 2022/03/02 CRDT- 2022/03/10 15:42 PHST- 2022/01/10 00:00 [received] PHST- 2022/02/17 00:00 [revised] PHST- 2022/02/28 00:00 [accepted] PHST- 2022/03/10 15:42 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/03/15 06:00 [medline] PHST- 2022/03/02 00:00 [pmc-release] AID - s22051962 [pii] AID - sensors-22-01962 [pii] AID - 10.3390/s22051962 [doi] PST - epublish SO - Sensors (Basel). 2022 Mar 2;22(5):1962. doi: 10.3390/s22051962.