【作者】 刘彪； 贾宁； 黄建纯； 李燕；

【Author】 LIU Biao;JIA Ning;HUANG Jian-chun;LI Yan;Institute of Acoustics,Chinese Academy of Sciences;Key Laboratory of Underwater Acoustic Environment,Chinese Academy of Sciences;University of Chinese Academy of Sciences;

【机构】 中国科学院声学研究所； 中国科学院水声环境特性重点实验室； 中国科学院大学；

【摘要】 JANUS是北约提出的世界上唯一公开的水声通信标准协议,主要解决不同体制水声通信机间的相互通信问题。JANUS的性能己经得到了多个国际组织的评估,也应用到了多种型号水下MODEM产品的研制中,未来很有可能成为一种世界范围内军民通用的水声通信标准。因此,了解和掌握该标准的原理和性能,对于我们参与该标准的修订和改进,乃至提出我国水声通信标准协议都有重大的意义。本文在对JANUS原理和方法分析的基础上,重点通过计算机仿真和海上试验的方法对其在水声信道下的性能进行了研究,重点讨论了信道结构、信噪比等对JANUS通信性能的影响。更多还原

【Abstract】 JANUS is the only open underwater acoustic communication standard.It was proposed by NATO to provide a solution of communication between underwater devices with different communication schemes.JANUS’s performance has been evaluated by a number of international organizations,but also adapted to various models of underwater MODEM.In the future,it has a potential to become a universal underwater acoustic communication standard for civilians and military implements.Therefore,in order to make contribution to the development of the standard,we need to understand its principle and performance.Also,it will help us to develop a standard of our own.Based on the analysis of the principle and method of JANUS,this paper focuses on the research of its performance under underwater acoustic channel by means of computer simulation and sea trial,and mainly discusses the influence of channel structure,signal-to-noise ratio on the communication performance of JANUS.更多还原