m序列在水声通信中应用  

The fast arithmetic in the underwater communication

作　　者：季晓燕[1] 江鹏[2] 蔡惠智[2] 

机构地区：[1]中船重工集团717研究所,湖北武汉430074 [2]中国科学院声学研究所,北京100080

出　　处：《海洋技术》2005年第3期61-64,共4页Ocean Technology

摘　　要：针对在水声通信中使用m序列作为编码形式的扩频通信系统进行研究。分析扩频码的产生和序列特点,给出的声线搜索、信息解码的具体方法。对其中相关运算提出了快速算法,解决了运算中的瓶颈问题,极大地提高了运算速度,并对长序列的快速相关进行了初步探索。This paper uses m sequence to code the information in under water acoustic spread spectrum communication system, has analyzed the generation of m sequence and the characteristics of it, then gives the methods of searching the sound ray and decoding information, and also gets a fast arithmetic on the correlate computation part of the system. It solves the neck problem in computation and increase the compute speed dramatically. Farther more, has an elementary explore on the fast arithmetic of the long sequence.

关 键 词：扩频 M序列 重置 相关 

分 类 号：P733.23[天文地球—物理海洋学]