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- W2363412097 abstract "This paper mainly focuses on how to extract out typical footstep signal in a noisy environment such like cities.After analyze the characters of frequency spectrum distribution of footstep and background noise,a novel footstep extraction algorithm based on seismic sensor arrays is proposed.In this algorithm,Wavelet Packet Decomposition(WPD) and Local Discriminant Bases(LDB) is utilized to acquire the best frequency band of the footstep signal,and extract it from background noise.The simulation results show that this algorithm has a distinct improvement in footstep detecting and classification." @default.
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- W2363412097 date "2012-01-01" @default.
- W2363412097 modified "2023-09-22" @default.
- W2363412097 title "Footstep Signal Extraction Algorithm Based on Wavelet Packet Decomposition and Local Discriminant Bases" @default.
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