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一种新的基于稀疏表示的单通道盲源分离算法

田元荣* 王星 周一鹏

田元荣*, 王星, 周一鹏. 一种新的基于稀疏表示的单通道盲源分离算法[J]. 电子与信息学报, 2017, 39(6): 1371-1378. doi: 10.11999/JEIT160888
引用本文: 田元荣*, 王星, 周一鹏. 一种新的基于稀疏表示的单通道盲源分离算法[J]. 电子与信息学报, 2017, 39(6): 1371-1378. doi: 10.11999/JEIT160888
TIAN Yuanrong, WANG Xing, ZHOU Yipeng. Novel Single Channel Blind Source Separation Algorithm Based on Sparse Representation[J]. Journal of Electronics and Information Technology, 2017, 39(6): 1371-1378. doi: 10.11999/JEIT160888
Citation: TIAN Yuanrong, WANG Xing, ZHOU Yipeng. Novel Single Channel Blind Source Separation Algorithm Based on Sparse Representation[J]. Journal of Electronics and Information Technology, 2017, 39(6): 1371-1378. doi: 10.11999/JEIT160888

一种新的基于稀疏表示的单通道盲源分离算法

doi: 10.11999/JEIT160888
基金项目: 

国家自然科学基金(61372167),航空科学基金(20152096019)

Novel Single Channel Blind Source Separation Algorithm Based on Sparse Representation

Funds: 

The National Natural Science Foundation of China (61372167), The Aviation Science Foundation of China (20152096019)

  • 摘要: 该文针对稀疏表示应用于单通道盲源分离中存在字典间互干扰的问题,通过在常规联合字典中引入一个新的子字典 共同子字典,提出一种新的基于稀疏表示的单通道盲源分离算法。新的字典学习目标函数中单个源的保真度由对应子字典和共同子字典构成,共同子字典的存在可以有效避免某一源信号在其他子字典上寻求成份而带来的互干扰问题。目标函数的求解通过交替执行稀疏表示、字典更新和比例系数优化3个步骤来实现。在测试阶段,通过收集单个源所对应子字典和共同子字典上的分量可以估计出混合信号中的单个源信号,从而达到盲源分离的目的。在语音数据库上进行的对比实验发现,所提算法较传统算法和前沿算法在两个通用评价指标上最高有近1 dB的提高。
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出版历程
  • 收稿日期:  2016-09-02
  • 修回日期:  2017-01-22
  • 刊出日期:  2017-06-19

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