Scrambler blind recognition method based on soft information
Two scrambler blind recognition methods based on soft information were proposed for received signal in non-cooperative ways.The first method established a cost function of the scrambler coefficients by using the soft information,and adopted the optimization theory of real number field for positive s...
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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.2017043/ |
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| _version_ | 1841539490118631424 |
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| author | Ze-liang CHEN Hua PENG Ke-xian GONG Pei-dong YU |
| author_facet | Ze-liang CHEN Hua PENG Ke-xian GONG Pei-dong YU |
| author_sort | Ze-liang CHEN |
| collection | DOAJ |
| description | Two scrambler blind recognition methods based on soft information were proposed for received signal in non-cooperative ways.The first method established a cost function of the scrambler coefficients by using the soft information,and adopted the optimization theory of real number field for positive solution.So it didn’t need to traverse the closed set of test polynomial any more.The second method built conformity degree concept with the soft information,and used the size of conformity of each test scrambler polynomial as the discriminant criteria.So it made more full use of the received information compared to the hard sentence recognition algorithm.Simulation results show that the first method can shorten the recognition time of a synchronous scrambler polynomial from 5 min 18 s to 8 s compared with the traversal method put forward by Cluzeau,and the second method has 2 dB SNR gain when to achieve the relatively high accuracy compared with the hard sentence recognition algorithm. |
| format | Article |
| id | doaj-art-30f8c4f57daf4db7b9160e8c0df173c5 |
| 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-30f8c4f57daf4db7b9160e8c0df173c52025-01-14T07:11:55ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-03-013817418259708817Scrambler blind recognition method based on soft informationZe-liang CHENHua PENGKe-xian GONGPei-dong YUTwo scrambler blind recognition methods based on soft information were proposed for received signal in non-cooperative ways.The first method established a cost function of the scrambler coefficients by using the soft information,and adopted the optimization theory of real number field for positive solution.So it didn’t need to traverse the closed set of test polynomial any more.The second method built conformity degree concept with the soft information,and used the size of conformity of each test scrambler polynomial as the discriminant criteria.So it made more full use of the received information compared to the hard sentence recognition algorithm.Simulation results show that the first method can shorten the recognition time of a synchronous scrambler polynomial from 5 min 18 s to 8 s compared with the traversal method put forward by Cluzeau,and the second method has 2 dB SNR gain when to achieve the relatively high accuracy compared with the hard sentence recognition algorithm.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017043/soft informationscrambler blind recognitioncost functionconformity degreeanti-noise performance |
| spellingShingle | Ze-liang CHEN Hua PENG Ke-xian GONG Pei-dong YU Scrambler blind recognition method based on soft information Tongxin xuebao soft information scrambler blind recognition cost function conformity degree anti-noise performance |
| title | Scrambler blind recognition method based on soft information |
| title_full | Scrambler blind recognition method based on soft information |
| title_fullStr | Scrambler blind recognition method based on soft information |
| title_full_unstemmed | Scrambler blind recognition method based on soft information |
| title_short | Scrambler blind recognition method based on soft information |
| title_sort | scrambler blind recognition method based on soft information |
| topic | soft information scrambler blind recognition cost function conformity degree anti-noise performance |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017043/ |
| work_keys_str_mv | AT zeliangchen scramblerblindrecognitionmethodbasedonsoftinformation AT huapeng scramblerblindrecognitionmethodbasedonsoftinformation AT kexiangong scramblerblindrecognitionmethodbasedonsoftinformation AT peidongyu scramblerblindrecognitionmethodbasedonsoftinformation |