| 8APSK_TCM编码调制方法在水声传输中的应用 |
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| 引用本文： | 郭淑霞,刘志斌,仵敏娟.8APSK_TCM编码调制方法在水声传输中的应用[J].系统仿真学报,2007,19(23):5431-5433. |
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| 作者姓名： | 郭淑霞 刘志斌 仵敏娟 |
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| 作者单位： | 西北工业大学,陕西,西安,710072 |
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| 摘 要： | 论述了应用于水声信道的网格编码调制技术，分析了影响其性能的主要因素为有效编码长度，最小乘积距离；在此基础上，提出了基于水声信道的8APSK_TCM鳊码调制方法，并在给定的水声信道下进行了仿真，仿真结果表明：8APSK_TCM模式相对于标准的TCM模式在信噪比相同的情况下，降低了系统的误码率，改善了水声通信系统的可靠性。
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| 关 键 词： | 水声信道 信道编码 网格编码调制(TCM) 非对称相位调制(APSK) |
| 文章编号： | 1004-731X（2007）23-5431-03 |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006-10-26 |
8APSK_TCM Coding Method Application in Underwater Acoustic Communication |
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| GUO Shu-xia,LIU zhi-bing,WU Min-juan.8APSK_TCM Coding Method Application in Underwater Acoustic Communication[J].Journal of System Simulation,2007,19(23):5431-5433. |
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| Authors: | GUO Shu-xia LIU zhi-bing WU Min-juan |
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| Abstract: | The TCM coding method applied in underwater acoustic communication system was studied. The main factors which affected its performance were analyzed, that were the effective code length and minimum product distance. The method of designing asymmetric modulation----SAPSK_TCM based on the underwater acoustic channel was proposed, and the performance of it wassimulated in the Acoustic channel model. Simulation shows that the 8APSK_TCM scheme can bring a coding gain more than the normal scheme. This will improve the performance of underwater acoustic communication. |
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| Keywords: | underwater acoustic channel channel coding Trellis-Code-Modulation (TCM) Asymmetric PSK (APSK) |
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