Doppler Estimation, Synchronization with HFM Signals for Underwater Acoustic Communications

Abstract:

This paper presents the application of the hyperbolic frequency modulated (HFM) signal to acoustic propagation in order to improve the performance of underwater acoustic (UWA) communications. Due to the large delay spread caused by multipath propagation and the severe Doppler Effect of the channel, we propose the using of double HFM signals as preambles for Doppler estimation, frame synchronization in UWA communications. A theoretical analysis about Doppler-invariability of HFM signals was provided firstly, then some numerical simulations about Doppler estimation were implemented, and experiments on testing performance of double-HFM preambles for frame synchronization in the pool were carried out as well. The simulation and experimental results show that using double-HFM signals as preambles has the capability to take an explicit Doppler estimation and retiming for frame synchronization, demonstrating that it has a good prospect in underwater acoustic communication system, especially for moving platforms.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 1638-1645
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.1638
• Online since: September 2012
• Authors: Lan Zhang, Xiao Mei Xu, Wei Feng, You Gan Chen
• Keywords: Doppler Estimation, Doppler-Invariability, Frame Synchronization, HFM Signal, Underwater Acoustic Communications

References

[1] Stojanovic, M.; Preisig, J. Underwater acoustic communication channels: Propagation models and statistical characterization. Communications Magazine, IEEE , vol. 47, no. 1, pp.84-89, January (2009).

DOI: 10.1109/mcom.2009.4752682

[2] Sharif, B.S.; Neasham, J.; Hinton, O.R.; Adams, A.E.; , A computationally efficient Doppler compensation system for underwater acoustic communications, Oceanic Engineering, IEEE Journal of , vol. 25, no. 1, pp.52-61, Jan (2000).

DOI: 10.1109/48.820736

[3] M. Johnson, L. Freitag, and M. Stojanouic, Improved Dopplertracking and correction for underwater acomtic Communications", Proceedings o/fEEE Con/erence on Aconstm. Speech. and SignalProcessing, (ICASSP, 97). vol. I, pp.575-578, (1997).

[4] Freitag, M. Grund, S. Singh. and M. Johnson, Acousticcommunication in very shallow water: Results from the 1999 AUVFesl, Pvoceeding. v of MTSIIEEE OCEANS 2000 Conference, vol. 3, pp.2155-2160, (2000).

DOI: 10.1109/oceans.2000.882253

[5] T.C. Yang and A. AI-Kurd, Performance limitations of jointadaptive channel equalizer and phase locking loop in random oceans: Initial test data, Proceedings of MTS!lEEE OCEANS 2000 Conference, vol. 2, pp.803-808, (2000).

DOI: 10.1109/oceans.2000.881357

[6] J.J. Davies and S.A. Pointer, UW communication system design for severely dispersed channels", Proceedings of MTS!lEEE OCEANS '98 Confe, ~nce, vol. 2 pp.1022-1027, 1998. M. Young, The Technical Writer, s Handbook. Mill Valley, CA: University Science, (1989).

DOI: 10.1109/oceans.1998.724391

[7] Mason, S.; Berger, C.; Zhou, S.; Willett, P. Detection, Synchronization, and Doppler Scale Estimation with Multicarrier Waveforms in Underwater Acoustic Communication. Selected Areas in Communications, IEEE Journal on , vol. 26, no. 9, pp.1638-1649, December (2008).

DOI: 10.1109/jsac.2008.081204

[8] J. Yang, T. K. Sarkar. Doppler-invariant property of hyperbolic frequency modulated waveforms. Microwave and Optical Technology Letters, Volume 48, Issue 6, pages 1174–1179, June (2006).

DOI: 10.1002/mop.21573

[9] Changsheng Yang; Hong Liang. Time - scale analysis of wideband HFM signal and application on moving target detection. Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on , vol., no., pp.3887-3890, 25-27 May (2009).

DOI: 10.1109/iciea.2009.5138935

[10] Besson, O.; Giannakis, G.B.; Gini, F. Improved estimation of hyperbolic frequency modulated Chirp signals. Signal Processing, IEEE Transactions on , vol. 47, no. 5, pp.1384-1388, May (1999).

DOI: 10.1109/78.757226

[11] Doisy, Y.; Deruaz, L.; van IJsselmuide, S.P.; Beerens, S.P.; Been, R.; , Reverberation Suppression Using Wideband Doppler-Sensitive Pulses, Oceanic Engineering, IEEE Journal of , vol. 33, no. 4, pp.419-433, Oct. (2008).

DOI: 10.1109/joe.2008.2002582