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《JOURNAL OF BALLISTICS》 2000-02
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FEATURE EXTRACTION OF MICROSEISMIC SIGNAL BY BISPECTRUM

Zhu Jinan Hou Yao Nie Weirong (Mech. College, NUST, Nanjing, 210094)  
The concept of bispectrum is discusses and it is pointed out that bispectrum can theoretically eliminate Gaussian noise completely. At the same time with respect to microseismic signal from the wheeled vehicle and tracked vehicle in a distance, this paper compares power spectrum analysis with bispectrum analysis and draws a conclusion that the latter is superior to the other in feature extraction, which actually proves the bispectrum analysis is effective. So this paper gives a suggestion of analyzing microseismic signal. This method is adapted to sense microsignalsfrom faraway.
【CateGory Index】: TN911.7
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