哈尔滨工程大学学报Issue(12)：1473-1479,7.DOI:10.3969/j.issn.1006-7043.201309055
AUV 水声跳频通信调制解调器的设计与实现
Design and implementation of AUV underwater acoustic frequency hopping communication modem
摘要
Abstract
In the complex time-varying underwater acoustic channel, non-coherent FH-FSK modulation is a robust and reliable communication mode, and it is suitable for remote control of low-speed, highly reliable underwater communication applications, such as, in communication with high-speed AUV ( autonomous underwater vehicle) remotely controlled by a ship.However, there are some difficulties with high-speed movement bringing serious dete-rioration of communication system performance.Therefore, to save the limited energy, AUV will carry out power-on and power-off operation based on communication requirements, leading to a difficult work for an asynchronous sim-plex operating mode between nodes of surface and underwater communication.This paper presents resolutions for the difficulties above.The methods used are dual-pulse technology for reliable Doppler estimation, linear interpola-tion method for high-efficiency Doppler compensation, and the use of combining high-precision clock onboard of communication nodes and the design of acoustic-link synchronization mechanism to effectively solve establishment of bidirectional communication link and data transmission between the AUV and surface control boat.Based on the OMAP-L138 dual-core processor platform, the FH-FSK prototype of underwater acoustic modem was designed and implemented.The lake-test results showed that the proposed transmission control protocol can guarantee random connection or disconnection of the communication link between the communication nodes, which proved that the prototype is stable and reliable.关键词
非相干调制/脉冲对/多普勒估计/线性插值/双向链路/声链路同步/FH-FSK/水声通信/跳频Key words
non-coherent modulation/pulse pair/Doppler estimation/linear interpolation/bidirectional link/a-coustic-link synchronization/FH-FSK/underwater acoustic communication/frequency hopping分类
信息技术与安全科学引用本文复制引用
范巍巍,张殿伦,董继刚,张友文..AUV 水声跳频通信调制解调器的设计与实现[J].哈尔滨工程大学学报,2014,(12):1473-1479,7.基金项目
国家自然科学基金资助项目（50909029）． （）
