Signal noise reduction method and device, equipment and storage medium

• Main Authors: DING XIAOSEN, XU ZIQIANG, CHEN HAO, SHEN ZHANGLIANG, XU HONGHUA, YUAN CHAO, YE YUYUAN, ZHU LEI
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The embodiment of the invention discloses a signal noise reduction method and device, equipment and a storage medium. The method comprises the following steps: acquiring an original partial discharge ultrahigh frequency signal; performing iterative decomposition on the original partial discharge ultrahigh frequency signal based on a set fitness function to obtain a plurality of first target intrinsic mode function (IMF) components; dividing the plurality of first target IMF components into a plurality of second target IMF components and a plurality of third target IMF components based on the kurtosis values of the first target IMF components; de-noising the plurality of second target IMF components based on a target wavelet coefficient and a target wavelet threshold to obtain a plurality of de-noised second target IMF components; and determining a target partial discharge ultrahigh frequency signal based on the plurality of denoised second target IMF components and the plurality of third target IMF components