Variable-step blind source separation method with adaptive momentum factor
A variable-step blind source separation algorithm based on the natural gradient with adaptive momentum factor was proposed,which could cope with the determined blind source separation in the environment of stationary and non-stationary.Function estimation mixed matrix was constructed by performance...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017067/ |
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| _version_ | 1841539494607585280 |
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| author | Tian-qi ZHANG Bao-ze MA Xing-zi QIANG Sheng-rong QUAN |
| author_facet | Tian-qi ZHANG Bao-ze MA Xing-zi QIANG Sheng-rong QUAN |
| author_sort | Tian-qi ZHANG |
| collection | DOAJ |
| description | A variable-step blind source separation algorithm based on the natural gradient with adaptive momentum factor was proposed,which could cope with the determined blind source separation in the environment of stationary and non-stationary.Function estimation mixed matrix was constructed by performance index.The estimated performance index was obtained by the estimated mixed matrix,and the constructor was updated by the estimated performance index.Then,the constructor was plugged with appropriate experienced parameter into the proposed algorithm and step and momentum factor was adaptively adjusted.Finally,the estimation source signals could be obtained.Simulations show that the proposed algorithm is effective to estimate the mixed matrix in the stationary and non-stationary environments,and the proposed algorithm has faster convergence speed and lower steady error as well as separates source signals effectively. |
| format | Article |
| id | doaj-art-393afdffc0bd4753a92785acc8c10212 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-393afdffc0bd4753a92785acc8c102122025-01-14T07:11:49ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-03-0138162459708343Variable-step blind source separation method with adaptive momentum factorTian-qi ZHANGBao-ze MAXing-zi QIANGSheng-rong QUANA variable-step blind source separation algorithm based on the natural gradient with adaptive momentum factor was proposed,which could cope with the determined blind source separation in the environment of stationary and non-stationary.Function estimation mixed matrix was constructed by performance index.The estimated performance index was obtained by the estimated mixed matrix,and the constructor was updated by the estimated performance index.Then,the constructor was plugged with appropriate experienced parameter into the proposed algorithm and step and momentum factor was adaptively adjusted.Finally,the estimation source signals could be obtained.Simulations show that the proposed algorithm is effective to estimate the mixed matrix in the stationary and non-stationary environments,and the proposed algorithm has faster convergence speed and lower steady error as well as separates source signals effectively.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017067/blind source separationnatural gradientmomentum factorvariable-step |
| spellingShingle | Tian-qi ZHANG Bao-ze MA Xing-zi QIANG Sheng-rong QUAN Variable-step blind source separation method with adaptive momentum factor Tongxin xuebao blind source separation natural gradient momentum factor variable-step |
| title | Variable-step blind source separation method with adaptive momentum factor |
| title_full | Variable-step blind source separation method with adaptive momentum factor |
| title_fullStr | Variable-step blind source separation method with adaptive momentum factor |
| title_full_unstemmed | Variable-step blind source separation method with adaptive momentum factor |
| title_short | Variable-step blind source separation method with adaptive momentum factor |
| title_sort | variable step blind source separation method with adaptive momentum factor |
| topic | blind source separation natural gradient momentum factor variable-step |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017067/ |
| work_keys_str_mv | AT tianqizhang variablestepblindsourceseparationmethodwithadaptivemomentumfactor AT baozema variablestepblindsourceseparationmethodwithadaptivemomentumfactor AT xingziqiang variablestepblindsourceseparationmethodwithadaptivemomentumfactor AT shengrongquan variablestepblindsourceseparationmethodwithadaptivemomentumfactor |