Blind estimation of MPSK carrier frequency
The blind carrier frequency estimation of multi-phase shift keying（MPSK） signals was discussed.The carrier frequency was coarsely estimated without the prior knowledge of received signals.Consequently the signals were trans-formed to the baseband-modulated PSK signals by correlation to estimate the...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2007-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74660318/ |
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| _version_ | 1841537377610235904 |
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| author | DENG Zhen-miao LIU Yu |
| author_facet | DENG Zhen-miao LIU Yu |
| author_sort | DENG Zhen-miao |
| collection | DOAJ |
| description | The blind carrier frequency estimation of multi-phase shift keying（MPSK） signals was discussed.The carrier frequency was coarsely estimated without the prior knowledge of received signals.Consequently the signals were trans-formed to the baseband-modulated PSK signals by correlation to estimate the symbol rate.With the estimations of the carrier frequency and the symbol rate,the problem of carrier frequency estimation was converted to that of frequency offset.Because the phase of baseband-modulated PSK signal is a piecewise linear function and the slope coefficient of every segment is a linear function of frequency offset,the multi-segment line can be transformed to a straight-line and then the least squares fitting method was applied to estimate the slope coefficient.The simulation results show that this method can accurately estimate the carrier frequency without the prior knowledge. |
| format | Article |
| id | doaj-art-2aad32f549a444c48bb4b726ba5cd4e6 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2007-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-2aad32f549a444c48bb4b726ba5cd4e62025-01-14T08:36:46ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2007-01-019410074660318Blind estimation of MPSK carrier frequencyDENG Zhen-miaoLIU YuThe blind carrier frequency estimation of multi-phase shift keying（MPSK） signals was discussed.The carrier frequency was coarsely estimated without the prior knowledge of received signals.Consequently the signals were trans-formed to the baseband-modulated PSK signals by correlation to estimate the symbol rate.With the estimations of the carrier frequency and the symbol rate,the problem of carrier frequency estimation was converted to that of frequency offset.Because the phase of baseband-modulated PSK signal is a piecewise linear function and the slope coefficient of every segment is a linear function of frequency offset,the multi-segment line can be transformed to a straight-line and then the least squares fitting method was applied to estimate the slope coefficient.The simulation results show that this method can accurately estimate the carrier frequency without the prior knowledge.http://www.joconline.com.cn/zh/article/74660318/multi-phase shift keyingfrequency estimationleast squares fittingcarrier frequency |
| spellingShingle | DENG Zhen-miao LIU Yu Blind estimation of MPSK carrier frequency Tongxin xuebao multi-phase shift keying frequency estimation least squares fitting carrier frequency |
| title | Blind estimation of MPSK carrier frequency |
| title_full | Blind estimation of MPSK carrier frequency |
| title_fullStr | Blind estimation of MPSK carrier frequency |
| title_full_unstemmed | Blind estimation of MPSK carrier frequency |
| title_short | Blind estimation of MPSK carrier frequency |
| title_sort | blind estimation of mpsk carrier frequency |
| topic | multi-phase shift keying frequency estimation least squares fitting carrier frequency |
| url | http://www.joconline.com.cn/zh/article/74660318/ |
| work_keys_str_mv | AT dengzhenmiao blindestimationofmpskcarrierfrequency AT liuyu blindestimationofmpskcarrierfrequency |