Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals
To solve the issues of the poor performance and convergence difficulties in the blind equalization of high order continuous phase modulation (CPM) signals, a new EM-SOVA channel blind equalization method was developed from the perspective of hidden Markov model(HMM). A novel blind Turbo equalization...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015071/ |
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| author | Kai ZHONG Hua PENG Lin-dong GE |
| author_facet | Kai ZHONG Hua PENG Lin-dong GE |
| author_sort | Kai ZHONG |
| collection | DOAJ |
| description | To solve the issues of the poor performance and convergence difficulties in the blind equalization of high order continuous phase modulation (CPM) signals, a new EM-SOVA channel blind equalization method was developed from the perspective of hidden Markov model(HMM). A novel blind Turbo equalization algorithm for high order CPM signals was proposed based on the combination of this method and Turbo equalization. The algorithm improved the equalization performance by applying the soft-output Viterbi algorithm(SOVA) within an EM iteration. Simultaneously, a soft infor-mation iterative process was used for further improvement of the system performance at a low signal-to-noise ratio. The analysis and simulation results show that the proposed algorithm provides a good blind equalization performance and convergence. |
| format | Article |
| id | doaj-art-f17eb8e20e61451b9924e93fb1c57ba1 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-f17eb8e20e61451b9924e93fb1c57ba12025-01-14T06:45:45ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-03-013617017859690952Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signalsKai ZHONGHua PENGLin-dong GETo solve the issues of the poor performance and convergence difficulties in the blind equalization of high order continuous phase modulation (CPM) signals, a new EM-SOVA channel blind equalization method was developed from the perspective of hidden Markov model(HMM). A novel blind Turbo equalization algorithm for high order CPM signals was proposed based on the combination of this method and Turbo equalization. The algorithm improved the equalization performance by applying the soft-output Viterbi algorithm(SOVA) within an EM iteration. Simultaneously, a soft infor-mation iterative process was used for further improvement of the system performance at a low signal-to-noise ratio. The analysis and simulation results show that the proposed algorithm provides a good blind equalization performance and convergence.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015071/continuous phase modulationhidden Markov modelsoft-output Viterbi algorithmexpectation maximiza-tion algorithmTurbo equalization |
| spellingShingle | Kai ZHONG Hua PENG Lin-dong GE Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals Tongxin xuebao continuous phase modulation hidden Markov model soft-output Viterbi algorithm expectation maximiza-tion algorithm Turbo equalization |
| title | Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals |
| title_full | Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals |
| title_fullStr | Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals |
| title_full_unstemmed | Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals |
| title_short | Blind Turbo equalization algorithm based on hidden Markov model for continuous phase modulation signals |
| title_sort | blind turbo equalization algorithm based on hidden markov model for continuous phase modulation signals |
| topic | continuous phase modulation hidden Markov model soft-output Viterbi algorithm expectation maximiza-tion algorithm Turbo equalization |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015071/ |
| work_keys_str_mv | AT kaizhong blindturboequalizationalgorithmbasedonhiddenmarkovmodelforcontinuousphasemodulationsignals AT huapeng blindturboequalizationalgorithmbasedonhiddenmarkovmodelforcontinuousphasemodulationsignals AT lindongge blindturboequalizationalgorithmbasedonhiddenmarkovmodelforcontinuousphasemodulationsignals |