Real-Time Artifact Removal System for Surface EMG Processing During Ten-Fold Frequency Electrical Stimulation

被引：8

作者：

Wang, Hai-Peng ^{[1
,2
]}

Bi, Zheng-Yang ^{[3
]}

Fan, Wen-Jie ^{[2
]}

Zhou, Yi-Xin ^{[2
]}

Zhou, Yu-Xuan ^{[3
,4
]}

Li, Fei ^{[2
]}

Wang, Keping ^{[2
]}

Lu, Xiao-Ying ^{[3
,5
]}

Wang, Zhi-Gong ^{[2
,5
]}

机构：

[1] Sanjiang Univ, Sch Elect & Informat Engn, Nanjing 210012, Peoples R China

[2] Southeast Univ, Inst RF & OE ICs, Nanjing 210096, Peoples R China

[3] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Peoples R China

[4] Nanjing Med Univ, Sch Biomed Engn & Informat, Dept Biomed Engn, Nanjing 211166, Peoples R China

[5] Nantong Univ, Coinnovat Ctr Neuroregenerat, Nantong 226001, Peoples R China

来源：

IEEE ACCESS | 2021年 / 9卷

基金：

中国国家自然科学基金;

关键词：

Electromyography; Iron; Real-time systems; Noise reduction; Filtering algorithms; Blanking; Field programmable gate arrays; Functional electrical stimulation (FES); stimulus artifact removal (SAR); surface electromyography (sEMG); adaptive filter; field-programmable gate array (FPGA); SIGNAL; DEVICE;

D O I：

10.1109/ACCESS.2021.3077644

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, three easily implemented hardware algorithms, including the adaptive prediction error filter based on the Gram-Schmidt algorithm (GS-APEF), the least mean square adaptive filter and the comb filter, are extensively investigated for artifact denoising on a constructed semi-simulated database with varied ten-fold frequency stimulation. By implementing the GS-APEF in the field-programmable gate array (FPGA) and using the edge noise mitigating technique, a stimulation artifact denoising system is designed to realize real-time stimulation artifact removal under varied ten-fold frequency functional electrical stimulation. Good performance of the artifact denoising is demonstrated in proof-of-concept experiments on able-bodied subjects with a mean correlation coefficient between the root mean square profile of denoised surface electromyography and volitional force of 0.94, verifying the validity of the proposed prototype.

引用

页码：68320 / 68331

页数：12

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