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一种改进的QAM信号的恒模算法：MCADAMA 被引量：1

A Modified CMA Algorithm of QAM System:MCADAMA
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摘要 提出了一种适用于QAM系统的改进的双模式算法MCADAMA(modified CMA-assisted decision adjusted modulus algorithm)。通过研究Axford提出的CADAMA双模式算法,受到MCMA算法的启发,结合恒模算法的特性,研究出了MCADAMA算法。通过搭建QAM盲均衡系统平台,把MCADAMA算法和其他3种恒模算法进行了比较,仿真结果表明,MCADAMA算法具有更快的收敛速度和更低的误码率,有效地提高了系统性能。 We proposed a dual mode CMA algorithm MCADAMA （modified CMA-assisted decision adjusted modulus algorithm）, which is suitable for QAM signal. Inspired by the MCMA, based on the study of dual-mode CMA algorithm CADAMA proposed by Axford, we proposed and studied the MCADAMA algorithm and compared MCADAMA with other three CMA algorithms based on a blind equalization system of QAM. The simulation results showed that the MCADAMA has faster convergence rate and lower bit error rate, and can improve system performance effectively.
作者 孔媛媛 王欣 鄷广增
机构地区 南京邮电大学研究生部 南京邮电大学通信与信息工程学院
出处 《南京邮电大学学报（自然科学版）》 2009年第3期73-77,共5页 Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金 国家自然科学基金(60472104) 南京邮电大学青蓝计划(NY207122) 江苏省高校研究生创新计划(CX07B_106z)资助项目
关键词 恒模算法 QAM CADAMA MCADAMA CMA QAM CADAMA MCADAMA
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献9

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同被引文献8

  • 1HE L, ADMIN M G, REED C, et al. A hybrid adaptive blind equalization algorithm for QAM signals in wireless communications[J]. IEEE Transactions on Signal Processing,2004,52(7): 2058-2069.
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  • 5GUO Ye Cai, HAN Ying Ge, YANG Chao. Orthogonal wavelet transform based sign decision dual-mode blind equalization algorithm[C]//ICSP 2008. Beijing: [s.n.],2008 80-83.
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  • 8LI Chi Sheng, DONG Wen Juan, WAN Guo Jin, et al. A new muhi-modulus blind equalization algorithm for QAM Signals[C]// International Conference on Wireless Communications, Networking and Mobile Computing,2009:1-4.

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南京邮电大学学报（自然科学版）
2009年 第3期

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