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- W2393886256 abstract "According to the vibration signal of the bit which is in the different layers with different characteristics, the delay information of the target level should be extracted. Due to the low SNR, the delay information can not be gotten by time domain waveform and the conventional cross-correlation. Wavelet transform-correlation algorithm is put forward. The reference signal and the analyzed signals will be done wavelet transformation respectively, and then cross-correlation is done in frequency domain to obtain the delay information, in order to determine the time when the bit is into the gravel medium. Both simulation and experimental research prove that compared with the traditional cross-correlation, the wavelet transform-cross correlation algorithm has a better ability to suppress the noise, and the delay information is detected accurately and clearly in real time." @default.
- W2393886256 created "2016-06-24" @default.
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- W2393886256 date "2014-01-01" @default.
- W2393886256 modified "2023-09-23" @default.
- W2393886256 title "Stratum identification of drilling based on wavelet transform-cross correlation" @default.
- W2393886256 hasPublicationYear "2014" @default.
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