水声混沌跳频通信技术研究  

Research on UWA FH-SS Communication of Remote Control Mine

作　　者：邱火旺[1] 王海燕[1] 王皓[1] 潘地宏[1] 

机构地区：[1]西北工业大学航海学院

出　　处：《探测与控制学报》2007年第2期4-7,共4页Journal of Detection & Control

基　　金：重点实验室基金项目资助(51444080204HK0322)

摘　　要：准确地遥控水下探测器的工作状态要求水声通信具有非常高的可靠性与保密性,因此水声通信的数据传输变得尤为重要。研究了低信噪比下的水声跳频通信技术,分析了混沌跳频图案的实现和水声跳频信号的低信噪比检测问题,介绍了编解码中的同步技术,并提出一种纠错码—扩展Hamming码在水声跳频通信中编码检错及纠错译码的实现方法。同时对该方法的性能进行了外场水库实验,验证了它在低信噪比水声通信中的可行性。Precise remote control of operation state of Underwater Detector has high requirements on stability and security of underwater channel, so it is very important for data transmission in underwater communication. Underwater acoustic （UWA） frequency-hopped spread-spectrum （FH-SS） technology in low signal to noise （SNR） environment is studied in this thesis, realization of Chaotic frequency-hopped pattern and detection of UWA frequency-hopped signal in low SNR environment are analyzed, synchronization in coding and decoding is introduced, and realization of error checking and correction using expanded Hamming code in UWA FH-SS communication is presented. Performance of this method was tested in field experimentation. Experimental results proved the feasibility of the method in UWA communication in low SNR environment.

关 键 词：跳频通信 扩展Hamming码 误码率 信噪比 

分 类 号：TB567[交通运输工程—水声工程]