Polynomial estimation method for PN sequence based on reliability accumulation
The issues of insufficient efficiency and poor error-tolerance of current high-order polynomial estimation me-thods under error conditions were studied.By combining the iterative berlekamp-massey(BM)algorithm in GF(2)and the improved Chase algorithm,a novel algorithm based on reliability accumulatio...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2012-09-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0125-07/ |
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| author | Song CHEN Kai-zhi HUANG Hua ZHAO |
| author_facet | Song CHEN Kai-zhi HUANG Hua ZHAO |
| author_sort | Song CHEN |
| collection | DOAJ |
| description | The issues of insufficient efficiency and poor error-tolerance of current high-order polynomial estimation me-thods under error conditions were studied.By combining the iterative berlekamp-massey(BM)algorithm in GF(2)and the improved Chase algorithm,a novel algorithm based on reliability accumulation was proposed.The sequence soft infor-mation was mapped to sequence reliability as the input information of BM algorithm,and the corresponding output relia-bility of estimated polynomial was accumulated as the rule of correct polynomial.In order to improve the estimation pre-cision,the candidate reliability-accumulated polynomial set were reduced by the characteristics of primitive polynomial in GF(2).The simulation results show that the proposed method is irrelevant with the tapped number of ator poly-nomial,and has a good estimation performance to estimate 17-order polynomials when the sequence BER is 18%. |
| format | Article |
| id | doaj-art-0c6832fc9d074fb49fa55ff4a0802c74 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-0c6832fc9d074fb49fa55ff4a0802c742025-01-14T06:32:38ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-09-013312513159664250Polynomial estimation method for PN sequence based on reliability accumulationSong CHENKai-zhi HUANGHua ZHAOThe issues of insufficient efficiency and poor error-tolerance of current high-order polynomial estimation me-thods under error conditions were studied.By combining the iterative berlekamp-massey(BM)algorithm in GF(2)and the improved Chase algorithm,a novel algorithm based on reliability accumulation was proposed.The sequence soft infor-mation was mapped to sequence reliability as the input information of BM algorithm,and the corresponding output relia-bility of estimated polynomial was accumulated as the rule of correct polynomial.In order to improve the estimation pre-cision,the candidate reliability-accumulated polynomial set were reduced by the characteristics of primitive polynomial in GF(2).The simulation results show that the proposed method is irrelevant with the tapped number of ator poly-nomial,and has a good estimation performance to estimate 17-order polynomials when the sequence BER is 18%.http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0125-07/m sequenceprimitive polynomialreliabilityBM algorithmsoft information |
| spellingShingle | Song CHEN Kai-zhi HUANG Hua ZHAO Polynomial estimation method for PN sequence based on reliability accumulation Tongxin xuebao m sequence primitive polynomial reliability BM algorithm soft information |
| title | Polynomial estimation method for PN sequence based on reliability accumulation |
| title_full | Polynomial estimation method for PN sequence based on reliability accumulation |
| title_fullStr | Polynomial estimation method for PN sequence based on reliability accumulation |
| title_full_unstemmed | Polynomial estimation method for PN sequence based on reliability accumulation |
| title_short | Polynomial estimation method for PN sequence based on reliability accumulation |
| title_sort | polynomial estimation method for pn sequence based on reliability accumulation |
| topic | m sequence primitive polynomial reliability BM algorithm soft information |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)09-0125-07/ |
| work_keys_str_mv | AT songchen polynomialestimationmethodforpnsequencebasedonreliabilityaccumulation AT kaizhihuang polynomialestimationmethodforpnsequencebasedonreliabilityaccumulation AT huazhao polynomialestimationmethodforpnsequencebasedonreliabilityaccumulation |