| m序列在水声通信中应用 |
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| 引用本文： | 季晓燕,江鹏,蔡惠智.m序列在水声通信中应用[J].海洋技术,2005,24(3):61-64. |
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| 作者姓名： | 季晓燕 江鹏 蔡惠智 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 扩频 m序列 重置 相关 |
| 文章编号： | 1003-2029（2005）03-0061-04 |
| 收稿时间： | 2004-12-12 |
| 修稿时间： | 2004年12月12 |
The fast arithmetic in the underwater communication |
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| JI Xiao-yan,JIANG Peng,CAI Hui-zhi.The fast arithmetic in the underwater communication[J].Ocean Technology,2005,24(3):61-64. |
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| Authors: | JI Xiao-yan JIANG Peng CAI Hui-zhi |
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| Institution: | 1. 717 institute of CSIC, Wuhan, Hubei, 430074; 2. Acoustic institute of CAS, Beijing, 100080 |
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| Abstract: | 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. |
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| Keywords: | Spread spectrum m sequence Relocate Correlate |
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