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基于动量算法的常数模新算法
NEW Momentum Algorithm Based on Constant Modulus Algorithm
【摘要】 针对传统常数模算法收敛速度慢的缺点,提出了一种基于动量算法的常数模算法。该算法的权向量更新公式中添加了动量因子,以提高收敛速度。利用水声信道对算法的性能进行仿真研究,仿真结果表明:与常数模算法相比,该算法能较快收敛。
【Abstract】 In order to overcome the slow convergence rate of traditional CMA (Constant modulus algorithm), a Momentum algorithm based Constant Modulus Algorithm (MCMA) is proposed. In the proposed MCMA, Momentum algorithm is added to the weight vector and employing it promotes the convergence rate. The MCMA is proved by computer simulations with underwater sound channel. Computer simulation indicates that the method can be faster than CMA.
【关键词】 水声信道;
误差函数;
动量算法;
常数模算法;
盲均衡;
【Key words】 Underwatera cousticc hannel; C onstantm odulusa lgorithm; Error function; Blind equalization; Momentum algorithm;
【Key words】 Underwatera cousticc hannel; C onstantm odulusa lgorithm; Error function; Blind equalization; Momentum algorithm;
【基金】 安徽省基金会(050420304);安徽省教育厅自然基金(2005kj008ZD)
- 【文献出处】 中国科技信息 ,China Science and Technology Information , 编辑部邮箱 ,2006年14期
- 【分类号】TB567
- 【下载频次】45