한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2013년도 춘계학술대회 논문집
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- Pages.694-695
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- 2013
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- 1598-2548(pISSN)
분산성 램파의 전파에서 입력 파형의 복원을 위한 신호처리
Signal Processing Techniques for Recovering Input Waveforms in Dispersive Lamb Wave Propagation
초록
An experimental study has been made with the use of time reversal concepts to recover the input waveform in a long range propagation of dispersive Lamb waves. Three techniques have been tested: Regular TR, 1 bit TR and Inverse filter (IF). The IF approach was found to completely recover the original input signal. Moreover, the IF technique significantly increases the contrast, i.e., the ratio of the recovered signal and the sideband signal.
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