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| MIMO水声信道分数间隔自适应均衡的研究 | |
| 引用本文： | 冯瑶,赵东风,童赛美,王昆.MIMO水声信道分数间隔自适应均衡的研究[J].云南大学学报(自然科学版),2009,31(1):39-42. |
| 作者姓名： | 冯瑶 赵东风 童赛美 王昆 |
| 作者单位： | 1. 云南大学, 通信工程系, 云南 昆明, 650091; 2. 中国船舶重工集团公司七五○试验场, 云南 昆明, 650051 |
| 摘 要： | 针对水声通信MIMO系统频率选择性衰落信道提出了一种分数间隔的判决反馈均衡器.结合采用二阶销相环路补偿载波相位偏移的方法,该均衡器消除了码间干扰,同时还降低了噪声增益.最后,通过仿真实验比较了单输入单输出(SISO)系统分数间隔判决反馈均衡和多输入多输出(MIMO)系统恒模算法的分数间隔判决反馈均衡器的特性. |
| 关 键 词： | 恒模算法 分数间隔判决反馈均衡器 MIMO系统通道 水声通道 |
| 收稿时间： | 2008-1-15 |
Analysis of adaptive equalizer of MIMO channels with fractionally-spaced in underwater acoustic communication |
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| FENG Yao,ZHAO Dong-feng,TENG Sai-mei,WANG Kan.Analysis of adaptive equalizer of MIMO channels with fractionally-spaced in underwater acoustic communication[J].Journal of Yunnan University(Natural Sciences),2009,31(1):39-42. | |
| Authors: | FENG Yao ZHAO Dong-feng TENG Sai-mei WANG Kan |
| Institution: | 1. Department of Communication Engineering, Yunnan University, Kunming 650091, China; 2. The 750 Test Range of the China Shipbuilding Industry Corporation, Kunming 650051, China |
| Abstract: | To cope with frequency selective fading in underwater acoustic communication,one kind of adaptive equalizer of MIMO channels with fractionally-spaced decision-feedback was proposed.Using a second order phase-locked loop(PLL) to compensate the carrier phase shift,the adaptive equalizer not only eliminate code disturb but also not bring about the noise gain.Its merit is suitable to serious distortion in underwater acoustic communication.Finally,single-input single-output(SISO) system was compared the multiple-input multiple-output(MIMO) system with constant modulus algorithm by simulation. |
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