Pattern差分编码水声通信研究  

Research on Pattern differential coding for underwater acoustic communication

作　　者：赵安邦[1] 解立坤[1] 路晓磊 陈凯[1,2] 

机构地区：[1]哈尔滨工程大学水声技术国防科技重点实验室 [2]91388部队

出　　处：《华中科技大学学报（自然科学版）》2012年第7期92-94,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金青年基金资助项目(51009041);中央高校基本科研业务费专项资金资助项目(F030102);海军工程大学基金资助项目(201200000071);海洋公益性行业科研专项经费资助项目(GZ2010001)

摘　　要：在Pattern时延差编码(PDS)通信体制的基础上,提出了Pattern差分编码方案.该方案将信息调制在相邻Pattern码的时延差上,减小了平均码元宽度,提高了通信速率.该方案通过码元分割降低了多途干扰,差分解码方式使其具有抗多普勒能力.现场试验中,定点通信实现了无误码传输,证明该体制能抑制多途干扰;移动通信误码率较低,证明该体制具有良好的抗多普勒能力.Pattern differential coding scheme was proposed based on pattern time delay shift coding（PDS）communication scheme,in which the delay time of adjacent pattern was used to encode the information.The communication rate was increased as the average code time length was decreased.The scheme decreased the multi-path interference by code division and could resist Doppler effect by differential decoding.In the experiment of Site,there is no bit error in fix-point communication which shows that the scheme can resist multi-path interference.Mobile communication has low bit error which shows that the scheme can resist Doppler effect.

关 键 词：差分编码 水声通信 通信速率 抗多途 抗多普勒 PATTERN 

分 类 号：TN911[电子电信—通信与信息系统]