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Volume 31 Issue 4
Dec.  2010
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Wei Xin, Zhao Li, Zou Cai-rong. Indirect Adaptive Equalization Algorithm for Shallow Water Acoustic Communication[J]. Journal of Electronics & Information Technology, 2009, 31(4): 916-919. doi: 10.3724/SP.J.1146.2007.01979
Citation: Wei Xin, Zhao Li, Zou Cai-rong. Indirect Adaptive Equalization Algorithm for Shallow Water Acoustic Communication[J]. Journal of Electronics & Information Technology, 2009, 31(4): 916-919. doi: 10.3724/SP.J.1146.2007.01979

Indirect Adaptive Equalization Algorithm for Shallow Water Acoustic Communication

doi: 10.3724/SP.J.1146.2007.01979
  • Received Date: 2007-12-25
  • Rev Recd Date: 2008-04-14
  • Publish Date: 2009-04-19
  • To eliminate inter-symbol interference brought from the shallow water acoustic channel which has property of time varying and multi path, an indirect adaptive equalization algorithm is proposed in this paper. A frame structure is designed, adapted to shallow water acoustic communication system in the transmitter. At receiver, frame header is used to perform fast channel estimation and initialization of equalization tap coefficients, the thresholds are set to activate taps of special position, and a variable step LMS adaptive algorithm is chosen to reduce further error when receiving frame body symbols. Theoretical analysis and simulation results show that the algorithm has fast convergence and low hardware complexity. Besides, it has good effect on the high-order modulated signal. Therefore, it will be suitable for shallow water high speed digital communication system.
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  • Sozer E M, Stojanovic M, and Proakis J G. Underwateracoustic networks [J].IEEE Journal of Oceanic Engineering.2000, 25(1):72-83[2]Stojanovic M. Recent advances in high-speed underwateracoustic communications [J]. IEEE Journal of OceanicEngineering, 1996, 21(2): 125-136.[3]孙丽君, 连卫民, 孙超. 一种浅海水声信道分数间隔自适应均衡算法研究[J]. 声学技术, 2007, 26(1): 137-140.Sun L J, Lian W M, and Sun C. Adaptive fractionally spacedequalization algorithm for shallow water acoustic channels [J].Technical Acoustics, 2007, 26(1): 137-140.[4]陈韶华, 相敬林, 石杰. 稀疏多径信道的T/2 间隔CFE 均衡器研究[J].电子与信息学报.2006, 28(6):1082-1085浏览[5]Stojanovic M and Freitag L. Multichannel detection forwideband underwater acoustic CDMA communications [J].IEEE Journal of Oceanic Engineering.2006, 31(3):685-695[6]张艳萍, 赵俊渭, 李金明. 稀疏水声信道判决反馈盲均衡算法研究[J].电子与信息学报.2006, 28(6):1009-1012浏览[7]Song A and Badiey M. Generalized equalization forunderwater acoustic communications [C]. Oceans 2005MTS/IEEE, Washington, D.C, Sept. 17-23, 2005: 1522-1527.[8]Proakis J G. Digital Communications [M]. Beijing:Publishing House of Electronics Industry, 2002, chap.10.[9]陈韶华, 相敬林, 石杰. 一种改进的适用于稀疏信道的DFE均衡器[J]. 西北工业大学学报, 2006, 24(2): 185-189.Chen S H, Xiang J L, and Shi J. Improving adaptive decisionfeedback equalizer(DFE) for sparse wireless channel [J].Journal of Northwestern Polytechnical University, 2006, 24(2):185-189.[10]李霞. 水声通信中的自适应均衡与空间分集技术研究 [D]. [博士论文], 哈尔滨工程大学, 2004.Li X. The study of adaptive equalization and spatial diversitytechnology applied to UWA communication [D]. HarbinEngineering University, 2004.
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