| 基于恒模类的盲均衡算法的仿真研究 |
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| 引用本文： | 孟新红,孙丽君. 基于恒模类的盲均衡算法的仿真研究[J]. 中国西部科技, 2008, 7(32): 14-16 |
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| 作者姓名： | 孟新红 孙丽君 |
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| 作者单位： | 河南工业大学,信息科学与工程学院,河南,郑州,450001 |
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| 摘 要： | 本文阐述了用于信道盲均衡的恒模算法的数学模型和基本原理。对近年来出现的恒模算法的改进算法——变步长恒模算法、修正恒模算法、多模算法、修正多模算法和双模式恒模算法进行了分析和仿真。仿真结果表明，与恒模算法相比，变步长恒模算法和多模算法有较小的剩余误差和较快收敛速度。修正恒模算法和修正多模算法则克服了信道传榆引起的相位偏移。
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| 关 键 词： | 恒模算法 盲均衡 变步长恒模算法 多模算法 |
Simulation of Blind Equalization Algorithm based on Constant Modulus Type |
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| MENG Xin-hong SUN li-jun. Simulation of Blind Equalization Algorithm based on Constant Modulus Type[J]. Science and Technology of West China, 2008, 7(32): 14-16 |
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| Authors: | MENG Xin-hong SUN li-jun |
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| Affiliation: | (Information Science and Engineering Henan University of Technology,Zhengzhou Henan 450001) |
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| Abstract: | The mathematics models and basic theory of Constant Modulus Algorithm(CMA) for blind channel equalization are expounded firstly.Several improved algorithms for constant modulus,including a variable step-size CMA,Modified CMA(MCMA),Multi-Modulus Algorithm(M/VIA)and Dual-Mode CMA which are put forward recently,are analyzed and simulated in this paper.Simulations show that variable step-size CMA and multi-modulus algorithm have smaller residual error and faster convergence speed than those obtained by using the CMA.And modified constant modulus algorithm and modified multi-modulus algorithm can overcome the phase offset. |
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| Keywords: | cma blind equalization variable step-size cma mma |
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