| 混沌调频M-ary方式在远程水声通信中的应用 |
| |
| 引用本文： | 王海斌, 吴立新. 混沌调频M-ary方式在远程水声通信中的应用[J]. 声学学报, 2004, 29(2): 161-166. DOI: 10.15949/j.cnki.0371-0025.2004.02.011 |
| |
| 作者姓名： | 王海斌 吴立新 |
| |
| 作者单位： | 中国科学院声学研究所声场声信息国家重点实验室，中国科学院声学研究所声场声信息国家重点实验室 北京 100080，北京 100080 |
| |
| 基金项目： | 国家自然科学基金(69802010) |
| |
| 摘 要： | 针对远程水声通信速率低的问题,提出了采用混沌调频M-ary(M元)通信方式提高通信速率的办法。将混沌序列引进到水声通信中来,由于量化后混沌序列的优良相关特性受到一定的破坏,为此提出了混沌调频M-ary通信体制,研究得出了混沌调频的重要特性:自相关特性好、正交码数目多、频谱利用率高、带宽和时间调整灵活等;给出了水声混沌调频M-ary通信系统的组成框图,并进行了海上实验。实验数据分析结果与理论值符合较好,表明这种通信体制是可行的,并能有效地提高通信速率。
|
| 收稿时间： | 2002-05-17 |
| 修稿时间： | 2003-07-25 |
Long-range underwater acoustic communication based on Chaotic-FM M-ary mode |
| |
| WANG Haibin, WU Lixin. Long-range underwater acoustic communication based on Chaotic-FM M-ary mode[J]. ACTA ACUSTICA, 2004, 29(2): 161-166. DOI: 10.15949/j.cnki.0371-0025.2004.02.011 |
| |
| Authors: | WANG Haibin WU Lixin |
| |
| Abstract: | In order to improve the data rate of long-range underwater acoustic communication (UWAC) system working on low frequency band, a type of communication mode is presented, that is Chaotic-FM M-ary mode. The chaotic sequences into UWAC field is introduced. Since the cross-correlation of the quantized chaotic sequences is damaged, Chaotic-FM signal which has many good properties, such as good correlation properties, numerous orthogonal codes, high utilization ratio of spectrum etc are studied. A block diagram of UWAC system based on Chaotic-FM M-ary mode is given out, and one sea test is designed to verify its feasibility and performance. The experimental results are in agreement with theoretical results. The Chaotic-FM M-ary mode is both feasible and reliable. It can improve the data rate of UWAC system. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《声学学报》浏览原始摘要信息 |
|
点击此处可从《声学学报》下载全文 |
|
