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Sound propagation in underwater will induce dispersion due to the natural sea waveguide, and then it will degrade the results of the signal processing. Based on the waveguide invariant, a general warping transform is presented. This warping transform could extract the waveguide mode dispersion curve and remove the effect of the waveguide dispersion. Results from the simulation and experiment show that the transform woks well.
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Keywords:
- waveguide invariant /
- Warping transform /
- frequency dispersion curve
[1] Chuprov S D 1982 Ocean Acoustic: Current State (Nauka: Moscow) p71
[2] Thode A M 2000 J. Acoust. Soc. Am. 108 1582
[3] Lu L C, Guo S M, Ma L 2009 Tech. Acoust. 28 586 (in Chinese) [鹿力成, 郭圣明, 马力 2009 声学技术 28 586]
[4] Heaney K D 2004 IEEE J. Oceanic Engineer. 29 88
[5] Su X X, Zhang R H, Li F H 2006 Acta Acoust. 31 303 (in Chinese) [苏晓星, 张仁和, 李风华 2006 声学学报 31 303]
[6] Gao D Z, Wang N, Wang H Z 2010 J. Comput. Acoust. 18 245
[7] Bonnel J, Le Touzé G, Nicolas B, Mars J I 2013 IEEE Signal Processing Magazine 30 120
[8] Ioana C, Quinquis A, Stephan Y 2006 IEEE J. Oceanic Engineer. 31 628
[9] Bonnel J, Nicolas B, Mars J I 2010 J. Acoust. Soc. Am. 128 719
[10] Zeng J, Chapman N R, Bonnel J 2013 JASA Express letters 134 394
[11] Zhou S H, Qi Y B, Ren Y 2014 Sci. China: Phys. Mech. Astron. 57 225
[12] Qi Y B, Zhou S H, Zhang R H, Zhang B, Ren Y 2014 Acta Phys. Sin. 63 044303 (in Chinese) [戚聿波, 周士弘, 张仁和, 张波, 任云 2014 物理学报 63 044303]
[13] D'Spain G L, Kuperman A 1999 J. Acoust. Soc. Am. 106 2454
[14] Baraniuk R, Jones D 1995 IEEE Trans. Signal Proc. 43 2269
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[1] Chuprov S D 1982 Ocean Acoustic: Current State (Nauka: Moscow) p71
[2] Thode A M 2000 J. Acoust. Soc. Am. 108 1582
[3] Lu L C, Guo S M, Ma L 2009 Tech. Acoust. 28 586 (in Chinese) [鹿力成, 郭圣明, 马力 2009 声学技术 28 586]
[4] Heaney K D 2004 IEEE J. Oceanic Engineer. 29 88
[5] Su X X, Zhang R H, Li F H 2006 Acta Acoust. 31 303 (in Chinese) [苏晓星, 张仁和, 李风华 2006 声学学报 31 303]
[6] Gao D Z, Wang N, Wang H Z 2010 J. Comput. Acoust. 18 245
[7] Bonnel J, Le Touzé G, Nicolas B, Mars J I 2013 IEEE Signal Processing Magazine 30 120
[8] Ioana C, Quinquis A, Stephan Y 2006 IEEE J. Oceanic Engineer. 31 628
[9] Bonnel J, Nicolas B, Mars J I 2010 J. Acoust. Soc. Am. 128 719
[10] Zeng J, Chapman N R, Bonnel J 2013 JASA Express letters 134 394
[11] Zhou S H, Qi Y B, Ren Y 2014 Sci. China: Phys. Mech. Astron. 57 225
[12] Qi Y B, Zhou S H, Zhang R H, Zhang B, Ren Y 2014 Acta Phys. Sin. 63 044303 (in Chinese) [戚聿波, 周士弘, 张仁和, 张波, 任云 2014 物理学报 63 044303]
[13] D'Spain G L, Kuperman A 1999 J. Acoust. Soc. Am. 106 2454
[14] Baraniuk R, Jones D 1995 IEEE Trans. Signal Proc. 43 2269
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