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公平神经网络的未知信源数盲分离算法
Blind Separation Algorithm with Unknown Source Number Based on a Fair Neural Network
【摘要】 提出一种基于公平神经网络的学习算法.设置一个合理的信源数初始值,通过构造的一个稳定性判决器,能够自适应调整神经网络的维数,并估计出信源数真实值,从而使信源得以成功分离.理论分析表明,在其数学统计意义上缩减了训练时间;而计算机仿真结果表明,在其不同信源数条件下均能快速收敛.
【Abstract】 This paper proposes a fair neural-network-based algorithm.It initiates the estimatied source number to be a proper value,and constructs a stability discriminator,which can adjust dimensions of the nerual network and estimate the actual source number.Hence the algortihm is capable of separating sources sucessfully.Theoretical analysis indicates that it reduces the training time in mathematical statistical sense,and simulation results proves that it can converge quickly under different source number cases.
【关键词】 超定盲分离;
信源数;
自适应神经网络;
稳定性判决器;
【Key words】 over-determined blind separation; source number; adaptive neural network; stability discriminator;
【Key words】 over-determined blind separation; source number; adaptive neural network; stability discriminator;
【基金】 福建省自然科学基金资助项目(A0640004);华侨大学科研启动费资助项目(13BS305);华侨大学横向科研资助项目(43201142)
- 【文献出处】 华侨大学学报(自然科学版) ,Journal of Huaqiao University(Natural Science) , 编辑部邮箱 ,2014年01期
- 【分类号】TN911.23
- 【被引频次】5
- 【下载频次】48