| 一种新的变步长快速盲均衡算法 |
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| 引用本文： | 柳雷,赖惠成.一种新的变步长快速盲均衡算法[J].通信技术,2011,44(1):13-15. |
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| 作者姓名： | 柳雷 赖惠成 |
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| 作者单位： | 新疆大学,信息科学与工程学院,新疆,乌鲁木齐,830046 |
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| 摘 要： | 在无线通信信道中,码间干扰严重影响了通信的质量和可靠性。传统的自适应均衡算法需要训练序列降低了传输效率,恒模算法（CMA）可以很好的克服了这个问题。针对CMA算法收敛速度较慢和无法纠正相位误差的缺点,提出一种新的步长迭代方法的改进型恒模算法（NSMCMA）。蒙特卡罗仿真表明,提出的算法,相比传统CMA算法,不仅可以纠正信道的相位偏转,而且具有更好的均衡效果和收敛性能。
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| 关 键 词： | 码间干扰 恒模算法 变步长 改进型恒模算法 |
A Modified Fast Blind Equalization Algorithm with Variable Step-size |
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| LIU Lei,LAI Hui-cheng.A Modified Fast Blind Equalization Algorithm with Variable Step-size[J].Communications Technology,2011,44(1):13-15. |
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| Authors: | LIU Lei LAI Hui-cheng |
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| Affiliation: | (College of Information Science ＆ Engineering,Xinjiang University,Urumqi Xinjiang 830046,China) |
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| Abstract: | In wireless communications,ISI has serious affects on the quality and reliability of communication.Traditional adaptive equalization for the need of training sequence,is of low efficiency in communication.To solve this problem,Constant Modulus Algorithm（CMA） is suggested.And aiming at its low convergence speed and no correction of the phase error,a modified blind equalization algorithm with variable step-size（NSMCMA） is proposed.Monte Carlo simulation indicates that as compared with the traditional constant modulus algorithm（CMA）,the proposed algorithm could correct the phase error while is better performance of convergence speed. |
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| Keywords: | ISI CMA Variable step-size MCMA algorithm |
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