Primary investigation on the application of ICA to blasting vibration signal separation
YI Chang-ping · Baozha yu chongji · 2011
Wavelet analysis and independent component analysis(ICA) were integrally applied to investigate the separation of the measured short-delay blasting vibration signals in two drilling holes.Wavelet analysis was used to filter out the high-frequency signal with a lower energy ratio in the blasting vibration signals and to extract the reconstructed signals in the frequency rang with the main features.The reconstructed signals were separated using ICA.The segmental seismic waves were successfully obtained,which could reflect the practical situation.And the actual short-delay interval time of the segmental seismic waves was determined.It is indicated that ICA is helpful for blasting vibration signal processing.