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| 一种水声信道自适应均衡算法研究 | |
| 引用本文： | 吴越,李军,翟军伟. 一种水声信道自适应均衡算法研究[J]. 信息安全与通信保密, 2012, 0(5): 61-62,65 |
| 作者姓名： | 吴越 李军 翟军伟 |
| 作者单位： | 1. 海军大连舰艇学院学员旅1队,辽宁大连,116018 2. 海军大连舰艇学院信息与通信工程系,辽宁大连,116018 3. 海军大连舰艇学院学员旅5队,辽宁大连,116018 |
| 摘 要： | 由声波传播的多途效应所引起的码间干扰及信号衰落,使得水下数据传输的速率和可靠性都大大降低。针对多途干扰严重的水声信道,将一种基于最小均方误差算法的信道自适应均衡器应用于水声信号处理中。对该均衡器的基本理论及其结构进行了归纳,结合水声多途信道的基本特点,建立了仿真模型,重点分析了步长参数、信噪比等对算法收敛速度和稳态误差等方面性能的影响,为实现高质量的水下信息传递提供技术支持。 |
| 关 键 词： | 水声信道 自适应 均衡 最小均方误差 |
Research on Underwater Acoustic Channel Adaptive Equalization Algorithm |
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| WU Yue,LI Jun,ZHAI Jun-wei. Research on Underwater Acoustic Channel Adaptive Equalization Algorithm[J]. China Information Security, 2012, 0(5): 61-62,65 | |
| Authors: | WU Yue LI Jun ZHAI Jun-wei |
| Affiliation: | 3 (1No.1 Team, Dalian Naval Academy, Dalian Liaoning 116018, China; 2Department of Information and Communication Engineering, Dalian Naval Academy, Dalian Liaoning 116018, China; 3No.5 Team, Dalian Naval Academy, Dalian Liaoning 116018, China) |
| Abstract: | The ISI and signal attenuation caused by rnultipath effect could make underwater data transmission more difficult. A aiming at the underwater acoustic channel with serious interference by multipath, an adaptive channel equalization method based on the least mean square error algorithm is applied in the underwater acoustic signal processing. The basic theory and structure of the equalizer are summarized. The simulation model is established in combination with the basic characteristics of multipath acoustic channel. The influence of step parameters and SJN＇R on the algorithm is analyzed, thus providing a technical support to the underwater acoustic communication. |
| Keywords: | underwater acoustic channel adaptive equalization LMS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |