Research on Noise Suppression Method for Transient Electromagnetic Signal

T133 electromagnetic methods can provide predictions and assessments for shallow geological hazards that compromise transmission projects. The electromagnetic noise of the power network causes interference to the transient electromagnetic signal, which reduces the reliability of the detection signal. In this paper, according to the characteristics of electromagnetic noise in the power grid, a joint solution was proposed to suppress the power frequency noise by using the superposition sampling method and eliminate the harmonic noise by using wavelet denoising. According to the sampling characteristics of transient electromagnetic signals, the traditional superposition sampling method was improved and the noise suppression capability of the method was improved. The model proves the noise suppression effect of the proposed scheme.