基于水密拖缆宽带传输技术研究  

The study of broadband technology of water-tight towing line

作　　者：彭开志[1] 刘进[1] 

机构地区：[1]中国船舶重工集团公司第七二二研究所,湖北武汉430079

出　　处：《舰船科学技术》2009年第1期100-103,共4页Ship Science and Technology

摘　　要：在水下拖曳平台和母船之间,水密拖缆承担着拖曳和传输大量信息的功能。由于水下拖缆的特殊要求,在此环境下信息在水密拖缆中传输衰减增加,干扰因素增多,母船运动时拖拉拖缆影响到数据的传输,严重时甚至可能导致数据丢失。本文根据水密拖缆传输系统的特点,提出了基于水密拖缆的宽带ADSL传输思想,根据该思想,采用了FPGA作为ATM和ADSL帧格式间的转换,ADSL芯片组实现数据处理和接入,通过自适应比特算法改进使系统传输性能更为可靠。用此方法设计的传输系统满足了实时性要求,具有优良的性能。This paper is a research on communication between submarine towing platform and the lash ship. Owing to the special request of underwater-cable, the attenuation increased, the interference factor increased. In order to transmit in real time, raising a ADSL broadband thought. First, it is a brief introduction of water-tight cable. Then, puts forward broadband communication ADSL technology using twisted-pair cable, introduce design and implementation of this communication technology, introduced the simple transmission module design, the focus of the interface and the corresponding part of the framing module, finally, introduce a new auto-adapted bit-loading algorithm. According to this method, the system becomes more dependable,and satisfies the real time need,has a bright prospect.

关 键 词：水密拖缆 ADSL 自适应比特算法 

分 类 号：U666[交通运输工程—船舶及航道工程] TN965.7[交通运输工程—船舶与海洋工程]