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一种引入自适应动量项的变步长混沌信号盲分离算法

张天骐 马宝泽 强幸子 全盛荣

张天骐, 马宝泽, 强幸子, 全盛荣. 一种引入自适应动量项的变步长混沌信号盲分离算法[J]. 电子与信息学报, 2017, 39(4): 908-914. doi: 10.11999/JEIT160578
引用本文: 张天骐, 马宝泽, 强幸子, 全盛荣. 一种引入自适应动量项的变步长混沌信号盲分离算法[J]. 电子与信息学报, 2017, 39(4): 908-914. doi: 10.11999/JEIT160578
ZHANG Tianqi, MA Baoze, QIANG Xingzi, QUAN Shengrong. Variable-step Blind Source Separation Algorithm with Adaptive Momentum Item for Chaotic Signals[J]. Journal of Electronics & Information Technology, 2017, 39(4): 908-914. doi: 10.11999/JEIT160578
Citation: ZHANG Tianqi, MA Baoze, QIANG Xingzi, QUAN Shengrong. Variable-step Blind Source Separation Algorithm with Adaptive Momentum Item for Chaotic Signals[J]. Journal of Electronics & Information Technology, 2017, 39(4): 908-914. doi: 10.11999/JEIT160578

一种引入自适应动量项的变步长混沌信号盲分离算法

doi: 10.11999/JEIT160578
基金项目: 

国家自然科学基金(61671095, 61371164, 61275099),信号与信息处理重庆市市级重点实验室建设项目(CSTC2009CA2003),重庆市教育委员会科研项目(KJ130524, KJ1600427, KJ1600429)

Variable-step Blind Source Separation Algorithm with Adaptive Momentum Item for Chaotic Signals

Funds: 

The National Natural Science Foundation of China (61671095, 61371164, 61275099), The Project of Key Laboratory of Signal and Information Processing of Chongqing (CSTC2009CA2003), The Research Project of Chongqing Educational Commission (KJ130524, KJ1600427, KJ1600429)

  • 摘要: 该文针对混沌信号盲分离问题,提出一种改进盲分离算法。该算法利用信号分离评价指标来构造函数实现步长和动量因子的自适应调整,然后将构造函数代入盲分离算法中并引入自适应动量项。区别于大多数算法不对混合矩阵进行估计的问题,该算法用变步长函数迭代估计出混合矩阵,从而得到全局矩阵和估计评价指标,以此迭代更新步长和动量因子,最终得出分离矩阵。仿真表明,该算法依据估计评价指标构造函数调整步长和动量因子方法是有效的,在平稳和非平稳环境下对混合混沌信号分离时都能达到收敛速度快且稳态误差小的效果;在混入色噪声时,比传统算法抗噪性能好,表明该文算法在混沌信号盲分离处理中有一定应用价值。
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出版历程
  • 收稿日期:  2016-06-03
  • 修回日期:  2016-11-28
  • 刊出日期:  2017-04-19

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