| 量化在基于正交小波的盲均衡算法上的应用 |
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| 引用本文： | 郭丽华,庞伟正,张星宇.量化在基于正交小波的盲均衡算法上的应用[J].应用科技,2003,30(11):16-18. |
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| 作者姓名： | 郭丽华 庞伟正 张星宇 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 常数模算法(CMA)是实际中应用最广的一种盲均衡算法，基于正交小波的CMA算法(WBCMA)与传统的LMS算法的横向均衡器相比收敛速度快，但计算量却有所增加，把量化应用到WBCMA上，采用以2的整数次幂对误差项进行量化，减小了误差项的字节数，因此减少了算法迭代中的乘法运算．计算机仿真证明了该方法的有效性，
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| 关 键 词： | 盲均衡算法 正交小波 CMA算法 常数模算法 码间干扰 数字通信 |
| 文章编号： | 1009-671X(2003)11-0016-03 |
| 修稿时间： | 2002年11月20 |
Application of quantification to orthogonal wavelet based CMA blind equalization |
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| GUO Li_hua,PANG Wei_zheng,ZHANG Xing_yu.Application of quantification to orthogonal wavelet based CMA blind equalization[J].Applied Science and Technology,2003,30(11):16-18. |
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| Authors: | GUO Li_hua PANG Wei_zheng ZHANG Xing_yu |
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| Abstract: | Adaptive blind equalization has gained widely spread use in communication receivers operating without training signals. In particular, the Constant Modulus Algorithm (CMA) has become a favorite of practitioners. The orthogonal wavelet based CMA blind equalization converges faster than the traditional LMS algorithms, but its cost is the increase in computational complexity. This paper applies quantification to WBCMA by using the integral power of 2 to quantify the error term. The bit of error term is decreased. Thereby, there is much reduction in computational complexity. Computer simulation proves the validity of this algorithm. |
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| Keywords: | quantification blind equalization algorithm orthogonal wavelet CMA intersymbol interference |
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