A Novel Scheme for Underwater Acoustic Mobile Communications

摘要：

The underwater acoustic channel is a complicated and time-varying multipath channel, especially for the mobile applications in the littoral. To accommodate the execrable channel conditions, a robust communication scheme is proposed, which combines the differential frequency hopping(DFH) and multi-carrier technologies. Also a novel Doppler-shift estimation and synchronization method is presented, which utilizes the doppler-invariant hyperbolic frequency modulation(HFM) signal associating with the doppler-sensitive long single tone pulse. Simulation results demonstrate that the proposed communication scheme performs well for underwater acoustic mobile communications with relative velocity up to 30 knots at data rate about 300bps. Base on these preliminary results, the proposed scheme shows considerable promise for reliable underwater acoustic mobile communications.

关键词： Underwater acoustic mobile communications DFH Multi-carrier HFM Doppler shift estimation

作者: Ling Yue Huadong Gan Shuhong Fan Mingzhou Wang

作者单位: College of Marine Engineering Northwestern Polytechnical University Xi’an 710072, China National Key Laboratory for Underwater Information Process & Control Xi’an 710075, China College of Marine Engineering Northwestern Polytechnical University Xi’an Precision Mechanics Research Institute Xi’an 710075, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1529-1532

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）