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- W3128477777 abstract "Noise source identification is a key step in the noise control design of the transformer. The sound propagation is influenced by the reverberation effect in the indoor substation, which leads that the traditional method cannot give correct results in such environment. To supress the reverberation effect, a sparse equivalent source method is proposed to realize the noise source identification in indoor substation. This method first establishes the indoor sound transfer function model between the equivalent source surface and the acquisition surface by using wave simulation. Based on the wave simulation and combined with the sound pressure sampling data, the distributed equivalent source is recovered on the equivalent source surface by sparse recovery algorithm, and finally the sound pressure reconstruction on the reconstruction surface is realized. The numerical verification demonstrates that this method is capable of extracting the real noise information in the reverberation sound and giving the real noise source distribution result. This method can be used as an effective method in the noise source identification in the indoor substation." @default.
- W3128477777 created "2021-02-15" @default.
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- W3128477777 date "2021-01-27" @default.
- W3128477777 modified "2023-10-02" @default.
- W3128477777 title "Noise source identification in indoor substation using a sparse equivalent source method" @default.
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- W3128477777 doi "https://doi.org/10.1088/1755-1315/647/1/012073" @default.
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