传感技术学报2017，Vol.30Issue(12)：1895-1899,5.DOI:10.3969/j.issn.1004-1699.2017.12.019
基于小波变换的昆虫刺吸电位(EPG) 信号去噪研究
Study of Insect Electrical Penetration Graph( EPG) Signal Denoising Based on Wavelet Transform
摘要
Abstract
Electrical penetration graph( EPG) signal has provided a strong basis for the study of the piercing-sucking insects feeding and virus transmission mechanism. However,the EPG signal is susceptible to various noises during acquisition,which can be removed by wavelet transform. In this paper,the wavelet threshold denoising method was adopted. The different wavelet basis functions and thresholds of the denoising method were selected by experiments. Taking the root mean square error and signal-to-noise ratio as the evaluation index,the wavelet coif4,6 layer decom-position and the improved threshold quantization was determined as the best denoising scheme under the Stein unbi-ased risk estimator. The experimental results showed that the wavelet threshold denoising method can effectively re-move different interference. The EPG signal denoising based on wavelet transform in this paper provides a guarantee for subsequent analysis and recognition.关键词
刺吸电位(EPG)信号/小波变换/阈值去噪Key words
electrical penetration graph( EPG) signal/wavelet transform/threshold denoising分类
信息技术与安全科学引用本文复制引用
吴莉莉,贾树恒,邢玉清,卢少华,潘建斌,闫凤鸣..基于小波变换的昆虫刺吸电位(EPG) 信号去噪研究[J].传感技术学报,2017,30(12):1895-1899,5.基金项目
河南省科技攻关计划项目(172102210044) （172102210044）
河南省高等学校重点科研项目(17A520036,18A510012) （17A520036,18A510012）
