| 水声通信中的编解码及其快速算法的研究 |
| |
| 引用本文： | 江鹏,蔡惠智.水声通信中的编解码及其快速算法的研究[J].应用声学,2006,25(4):240-245. |
| |
| 作者姓名： | 江鹏 蔡惠智 |
| |
| 作者单位： | 中国科学院声学研究所,北京,100080 |
| |
| 摘 要： | 本文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，给出的编码序列搜索，信息解码的解码方法。对其中相关运算给出了快速算法，解决了运算中的瓶颈问题，极大的提高了运算速度，并对长序列的快速相关进行初步探索。
|
| 关 键 词： | 扩频 m序列 重置 相关 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004-12-202006-01-04 |
Coding and decoding methods and fast algorithms in underwater communications |
| |
| JIANG Peng and CAI Hui-Zhi.Coding and decoding methods and fast algorithms in underwater communications[J].Applied Acoustics,2006,25(4):240-245. |
| |
| Authors: | JIANG Peng and CAI Hui-Zhi |
| |
| Institution: | Acoustic institute, Chinese Academy of Sciences, Beijing 100080 |
| |
| Abstract: | In this paper, rn sequences are used to code the information in the under water acoustic spread spectrum communication system. The generation and characteristics of m sequences are analyzed. The methods for searching the coded sequences and decoding the information are given. A fast algorithm is used to compute the correlation of the sequences, which alleviates the computation bottleneck and dramatically increases the computation speed. An elementary exploration on the fast algorithm of long sequences is also presented. |
| |
| Keywords: | Spread spectrum m sequence Relocate Correlate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用声学》浏览原始摘要信息 |
| 点击此处可从《应用声学》下载免费的PDF全文 |
