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 t...
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