| 一种改进的正交变换域水声信道盲均衡算法研究 |
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| 引用本文： | 张银兵,赵俊渭,郭业才,李金明. 一种改进的正交变换域水声信道盲均衡算法研究[J]. 兵工学报, 2009, 30(7): 920-924 |
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| 作者姓名： | 张银兵 赵俊渭 郭业才 李金明 |
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| 作者单位： | 1．西北工业大学航海学院，陕西西安710072;2．南京信息工程大学电子与信息工程学院，江苏南京210044 |
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| 基金项目： | 教育部全国优秀博士学位论文作者专项基金，兵器预研基金 |
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| 摘 要： | 针对常数模算法(CMA)收敛速度慢的缺点，将均衡器输入信号进行正交变换，实现正交变换域盲均衡。同时，引入均衡器输出星座匹配误差(CME)项，提出一种改进的正交变换域信道盲均衡算法(MTDCMA)．水声信道仿真结果表明：与常规常数模算法(CMA)及传统的基于正交变换的常数模盲均衡算法(TDCMA)相比，在同样的剩余码间干扰条件下，新算法具有更快的收敛速度。
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| 关 键 词： | 信息处理技术 盲均衡 正交变换 水声信道 星座匹配 |
A Modified Orthogonal Transform Domain Blind Equalization Algorithm for Underwater Acoustic Channel |
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| ZHANG Yin-bing,ZHAO Jun-wei,GUO Ye-cai,LI Jin-ming. A Modified Orthogonal Transform Domain Blind Equalization Algorithm for Underwater Acoustic Channel[J]. Acta Armamentarii, 2009, 30(7): 920-924 |
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| Authors: | ZHANG Yin-bing ZHAO Jun-wei GUO Ye-cai LI Jin-ming |
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| Affiliation: | 1. College of Marine, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China; 2.College of Electronic and Information Engineering, Nanjing University of Information science and Technology, Nanjing 210044, Jiangsu,China |
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| Abstract: | To deal with the disadvantage of slow convergence rate of the traditional constant modulus algorithm(CMA),blind channel equalization in orthogonal transform domain was performed by transforming the equalizer input signal orthogonally.A modified transform domain CMA(MTDCMA) was proposed by using constellation match error(CME) item of the equalizer output.Simulation with underwater acoustic channel shows that the proposed algorithm has faster convergence rate than those of CMA and traditional transform domain... |
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| Keywords: | information processing technique blind equalization orthogonal transform underwater acoustic channel constellation match |
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