• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 1997.05a
• /
• pp.37-37
• /
• 1997

• 전기산업
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• v.7 no.3
• /
• pp.96-101
• /
• 1996

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 1997.05a
• /
• pp.168-169
• /
• 1997

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 1997.05a
• /
• pp.35-36
• /
• 1997

• The Journal of the Acoustical Society of Korea
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• v.35 no.5
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• pp.331-339
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• 2016

This paper suggests an estimation method of the source signal and the channel impulse response (CIR) using ray-based blind deconvolution (RBD) in the underwater acoustic channel environment where Doppler effect exists by the relative motion between source and receiver. It is difficult to estimate the CIR on Doppler effect by the matched filter with a highly Doppler-sensitive waveform such as the m-sequence signal because Doppler shift can severely degrade the correlation between the received signal corrupted by Doppler effect and the original source signal. In this study, the Doppler-shifted source-signal's phase is estimated using the RBD, and the received signal is compensated by it to obtain the Doppler-corrected CIR. It is verified that using the matched filter with the received signal from the experimental data fails to estimate the CIR while the obtained CIR by the suggested method has the similarity to the propagation path of the ray model. Also, the results show that the reconstructed source signal using the RBD has the better Doppler shift compensation than the Doppler-shifted source signal derived from scattering function.