Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals
An adaptive particle filtering algorithm based on resampling was proposed for time delay estimation of PSK signals,which could eliminate the influence of inaccurate posterior possibility distribution caused by the small noise variance and the influence of the increase of estimation error caused by t...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2012-04-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)04-0129-07/ |
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| _version_ | 1841539896115724288 |
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| author | Nan XIA Tian-shuang QIU |
| author_facet | Nan XIA Tian-shuang QIU |
| author_sort | Nan XIA |
| collection | DOAJ |
| description | An adaptive particle filtering algorithm based on resampling was proposed for time delay estimation of PSK signals,which could eliminate the influence of inaccurate posterior possibility distribution caused by the small noise variance and the influence of the increase of estimation error caused by the large noise variance.Taking into account the small time delay estimation being invalid in the existing algorithms,a symbol forward and backward detection technique was applied to achieve random time delay accurate estimation in a symbol period.Otherwise,the carrier frequency offset of the received signal was estimated and compensated.Simulation results verify the novel algorithm can achieve more accurate time delay estimation and lower symbol error rate than the existing algorithm. |
| format | Article |
| id | doaj-art-2b50c754e2014a59b70a964c059718eb |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-2b50c754e2014a59b70a964c059718eb2025-01-14T06:31:43ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-04-013312913559661707Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signalsNan XIATian-shuang QIUAn adaptive particle filtering algorithm based on resampling was proposed for time delay estimation of PSK signals,which could eliminate the influence of inaccurate posterior possibility distribution caused by the small noise variance and the influence of the increase of estimation error caused by the large noise variance.Taking into account the small time delay estimation being invalid in the existing algorithms,a symbol forward and backward detection technique was applied to achieve random time delay accurate estimation in a symbol period.Otherwise,the carrier frequency offset of the received signal was estimated and compensated.Simulation results verify the novel algorithm can achieve more accurate time delay estimation and lower symbol error rate than the existing algorithm.http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)04-0129-07/particle filteringadaptive resamplingtime delay estimationsymbols forward and backward detection |
| spellingShingle | Nan XIA Tian-shuang QIU Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals Tongxin xuebao particle filtering adaptive resampling time delay estimation symbols forward and backward detection |
| title | Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals |
| title_full | Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals |
| title_fullStr | Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals |
| title_full_unstemmed | Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals |
| title_short | Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signals |
| title_sort | improved particle filtering based algorithm for time delay and symbols joint estimation of psk signals |
| topic | particle filtering adaptive resampling time delay estimation symbols forward and backward detection |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)04-0129-07/ |
| work_keys_str_mv | AT nanxia improvedparticlefilteringbasedalgorithmfortimedelayandsymbolsjointestimationofpsksignals AT tianshuangqiu improvedparticlefilteringbasedalgorithmfortimedelayandsymbolsjointestimationofpsksignals |