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| 基于直接序列扩频信号的水声信道辨识仿真 | |
| 引用本文： | 高成志,章新华,李军,耿刚德.基于直接序列扩频信号的水声信道辨识仿真[J].系统仿真学报,2010,22(1). |
| 作者姓名： | 高成志 章新华 李军 耿刚德 |
| 作者单位： | 1. 哈尔滨工程大学水声工程学院, 哈尔滨,150001;海军大连舰艇学院信号与信息技术研究中心,大连,116018 2. 海军大连舰艇学院信号与信息技术研究中心,大连,116018 3. 大连测控技术研究所,大连,116018 |
| 基金项目： | 十一五国防某预研项目(51303060504) |
| 摘 要： | 提出了基于直接序列扩频信号(Direct sequence spread spectrum,DSSS)的水声信道辨识方法,建立了水声信道仿真模型,用DSSS信号通过已知参量的仿真信道,然后对水声信道进行辨识。通过分析信道的散射函数求得水声信道主要路径的多普勒展宽与多径强度的估计值。在有、无噪声的情况下都比较精确的估计出了信道参量。算例和仿真结果表明所提出的信道辨识方法是有效和可行的。 |
| 关 键 词： | 直接序列扩频信号(DSSS) 水声信道辨识 冲击响应函数 散射函数 |
Simulate and Research on Underwater Acoustic Channel Identification Algorithm Based on Direct Sequence Spread Spectrum |
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| GAO Cheng-zhi,ZHANG Xin-hua,LI Jun,GENG Gang-de.Simulate and Research on Underwater Acoustic Channel Identification Algorithm Based on Direct Sequence Spread Spectrum[J].Journal of System Simulation,2010,22(1). | |
| Authors: | GAO Cheng-zhi ZHANG Xin-hua LI Jun GENG Gang-de |
| Institution: | GAO Cheng-zhi1,2,ZHANG Xin-hua2,LI Jun2,GENG Gang-de3(1.School of Underwater Acoustic Engineering,Harbin Engineering University,Harbin150001,China,2.Research Center of Signal Information,Dalian Naval Academy,Dalian 116018,3.Dalian Scientific Test & Control Technology Institute,China) |
| Abstract: | Underwater Acoustic Channel Identification Algorithm Based on Direct sequence spread spectrum was proposed.The simulation model of underwater acoustic channel was set up.The parameters of the underwater channel were measured and the Doppler spread of the main path was estimated,when the DSSS passed the channel which was simulated by the known parameters.Finally,this arithmetic is accurate whether there is noise by simulating.Simulation results of underwater acoustic channel estimation show that method has a... |
| Keywords: | Direct Sequence Spread Spectrum Underwater Acoustic Channel Identification impulse responding function scatter function |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |