Convolutive blind separation algorithm based on complex Givens matrix and bat optimization
For the limitations such as many unknown parameters, the separation accuracy was easily influenced by initial value of separation matrix in traditional convolutive blind separation, a kind of frequency method based on complex Givens matrix and bat optimization was proposed. The algorithm used a seri...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2016-07-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016138/ |
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| author | Zhi-cheng JIA Da-wei HAN Lei CHEN Yan-ju GUO Hao-da XU |
| author_facet | Zhi-cheng JIA Da-wei HAN Lei CHEN Yan-ju GUO Hao-da XU |
| author_sort | Zhi-cheng JIA |
| collection | DOAJ |
| description | For the limitations such as many unknown parameters, the separation accuracy was easily influenced by initial value of separation matrix in traditional convolutive blind separation, a kind of frequency method based on complex Givens matrix and bat optimization was proposed. The algorithm used a series of complex Givens matrices to denote separation matrix, it reduced unknown parameters, decreased the difficulty and the amount of calculations as a result. Be-sides, the algorithm utilized bat algorithm instead of conventional gradient algorithm to optimize rotation angles and completed the separation of complex linear instantaneous mixing signals at each frequency point, the use of bat algorithm made the optimization ability better. In addition, little prior information was needed and signals following various distri-butions could be separated. Simulation results show that the proposed method can realize convolutive blind separation ef-ficiently. |
| format | Article |
| id | doaj-art-caa3d30549954ea393603e9ae1bae89e |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2016-07-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-caa3d30549954ea393603e9ae1bae89e2025-01-14T06:55:47ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2016-07-013710711759702278Convolutive blind separation algorithm based on complex Givens matrix and bat optimizationZhi-cheng JIADa-wei HANLei CHENYan-ju GUOHao-da XUFor the limitations such as many unknown parameters, the separation accuracy was easily influenced by initial value of separation matrix in traditional convolutive blind separation, a kind of frequency method based on complex Givens matrix and bat optimization was proposed. The algorithm used a series of complex Givens matrices to denote separation matrix, it reduced unknown parameters, decreased the difficulty and the amount of calculations as a result. Be-sides, the algorithm utilized bat algorithm instead of conventional gradient algorithm to optimize rotation angles and completed the separation of complex linear instantaneous mixing signals at each frequency point, the use of bat algorithm made the optimization ability better. In addition, little prior information was needed and signals following various distri-butions could be separated. Simulation results show that the proposed method can realize convolutive blind separation ef-ficiently.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016138/blind separationconvolutive mixturesbat algorithmcomplex Givens matrix |
| spellingShingle | Zhi-cheng JIA Da-wei HAN Lei CHEN Yan-ju GUO Hao-da XU Convolutive blind separation algorithm based on complex Givens matrix and bat optimization Tongxin xuebao blind separation convolutive mixtures bat algorithm complex Givens matrix |
| title | Convolutive blind separation algorithm based on complex Givens matrix and bat optimization |
| title_full | Convolutive blind separation algorithm based on complex Givens matrix and bat optimization |
| title_fullStr | Convolutive blind separation algorithm based on complex Givens matrix and bat optimization |
| title_full_unstemmed | Convolutive blind separation algorithm based on complex Givens matrix and bat optimization |
| title_short | Convolutive blind separation algorithm based on complex Givens matrix and bat optimization |
| title_sort | convolutive blind separation algorithm based on complex givens matrix and bat optimization |
| topic | blind separation convolutive mixtures bat algorithm complex Givens matrix |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016138/ |
| work_keys_str_mv | AT zhichengjia convolutiveblindseparationalgorithmbasedoncomplexgivensmatrixandbatoptimization AT daweihan convolutiveblindseparationalgorithmbasedoncomplexgivensmatrixandbatoptimization AT leichen convolutiveblindseparationalgorithmbasedoncomplexgivensmatrixandbatoptimization AT yanjuguo convolutiveblindseparationalgorithmbasedoncomplexgivensmatrixandbatoptimization AT haodaxu convolutiveblindseparationalgorithmbasedoncomplexgivensmatrixandbatoptimization |