Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation
The timing synchronization is the key technique of the single-channel blind signal receiver.The single-channel blind recovery algorithm based on Turbo equalization was proposed,which does not require the timing synchronization.In the algorithm,the timing offset is taken as inter-symbol interference...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2014-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.01.006/ |
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| _version_ | 1841539778903801856 |
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| author | Dong-ling ZHANG Yong YANG Jing LI Lin-dong GE |
| author_facet | Dong-ling ZHANG Yong YANG Jing LI Lin-dong GE |
| author_sort | Dong-ling ZHANG |
| collection | DOAJ |
| description | The timing synchronization is the key technique of the single-channel blind signal receiver.The single-channel blind recovery algorithm based on Turbo equalization was proposed,which does not require the timing synchronization.In the algorithm,the timing offset is taken as inter-symbol interference channel,which can improve the restorability of source signals by the feedback soft information between channel estimation and the turbo equalization.The primary works include the research on initial blind equalization algorithm,the channel estimation algorithm,MMSE equalization algorithm for the mixed signals and the soft information interaction among those three algorithms.The proposed algorithm has low computational complexity and small computational load,which can be applied to high-order modulated signals.Simulation results show that,good performance could be achieved for BPSK,QPSK and 8PSK modulated signals.In addition,the proposed algorithm is suitable for both equal power and unequal power signals. |
| format | Article |
| id | doaj-art-fa1649142a8740f9a273bffa0fd018a0 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2014-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-fa1649142a8740f9a273bffa0fd018a02025-01-14T06:42:27ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-01-0135475359678711Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimationDong-ling ZHANGYong YANGJing LILin-dong GEThe timing synchronization is the key technique of the single-channel blind signal receiver.The single-channel blind recovery algorithm based on Turbo equalization was proposed,which does not require the timing synchronization.In the algorithm,the timing offset is taken as inter-symbol interference channel,which can improve the restorability of source signals by the feedback soft information between channel estimation and the turbo equalization.The primary works include the research on initial blind equalization algorithm,the channel estimation algorithm,MMSE equalization algorithm for the mixed signals and the soft information interaction among those three algorithms.The proposed algorithm has low computational complexity and small computational load,which can be applied to high-order modulated signals.Simulation results show that,good performance could be achieved for BPSK,QPSK and 8PSK modulated signals.In addition,the proposed algorithm is suitable for both equal power and unequal power signals.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.01.006/blind separationsingle-channelpaired carrier multiple accessTurbo equalizationrecursive least square channel estimation |
| spellingShingle | Dong-ling ZHANG Yong YANG Jing LI Lin-dong GE Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation Tongxin xuebao blind separation single-channel paired carrier multiple access Turbo equalization recursive least square channel estimation |
| title | Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation |
| title_full | Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation |
| title_fullStr | Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation |
| title_full_unstemmed | Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation |
| title_short | Blind data recovery of single-channel mixed signals based on Turbo equalization and channel estimation |
| title_sort | blind data recovery of single channel mixed signals based on turbo equalization and channel estimation |
| topic | blind separation single-channel paired carrier multiple access Turbo equalization recursive least square channel estimation |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.01.006/ |
| work_keys_str_mv | AT donglingzhang blinddatarecoveryofsinglechannelmixedsignalsbasedonturboequalizationandchannelestimation AT yongyang blinddatarecoveryofsinglechannelmixedsignalsbasedonturboequalizationandchannelestimation AT jingli blinddatarecoveryofsinglechannelmixedsignalsbasedonturboequalizationandchannelestimation AT lindongge blinddatarecoveryofsinglechannelmixedsignalsbasedonturboequalizationandchannelestimation |