Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals
For single-channel mixture of adjacent-frequency digitally modulated signals which have the fixed frame length and sync codes in non-cooperative satellite communications,a carrier initial phases estimation algorithm which can be applied to both low-order and high-order digitally modulated mixtures w...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2016-10-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016205/ |
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| author | Yong YANG Yi-ming GUO Hai-xin WANG Hua PENG Dong-ling ZHANG |
| author_facet | Yong YANG Yi-ming GUO Hai-xin WANG Hua PENG Dong-ling ZHANG |
| author_sort | Yong YANG |
| collection | DOAJ |
| description | For single-channel mixture of adjacent-frequency digitally modulated signals which have the fixed frame length and sync codes in non-cooperative satellite communications,a carrier initial phases estimation algorithm which can be applied to both low-order and high-order digitally modulated mixtures was provided according to the differences of parameters in the source signals.The sync data eliminated the frequency offset was added in the interval of frame length firstly,then timing synchronization was accomplished for the added result in terms of power maximization rule,thus the initial phases information was derived.Moreover,the modified Cramer-Rao bound (MCRB) of carrier initial phases for single-channel mixture of adjacent-frequency digitally modulated signals was derived for comparison.Simulation results show that,difference between estimation performance of the proposed algorithm and MCRB becomes smaller with the increase in the number of added frames. |
| format | Article |
| id | doaj-art-9878d027dcd442ca9371de96d6850e99 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2016-10-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-9878d027dcd442ca9371de96d6850e992025-01-14T06:56:12ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2016-10-013714114859704178Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signalsYong YANGYi-ming GUOHai-xin WANGHua PENGDong-ling ZHANGFor single-channel mixture of adjacent-frequency digitally modulated signals which have the fixed frame length and sync codes in non-cooperative satellite communications,a carrier initial phases estimation algorithm which can be applied to both low-order and high-order digitally modulated mixtures was provided according to the differences of parameters in the source signals.The sync data eliminated the frequency offset was added in the interval of frame length firstly,then timing synchronization was accomplished for the added result in terms of power maximization rule,thus the initial phases information was derived.Moreover,the modified Cramer-Rao bound (MCRB) of carrier initial phases for single-channel mixture of adjacent-frequency digitally modulated signals was derived for comparison.Simulation results show that,difference between estimation performance of the proposed algorithm and MCRB becomes smaller with the increase in the number of added frames.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016205/single-channel mixtureadjacent-frequency interferencecarrier initial phases estimationmodified Cramer-Rao bound |
| spellingShingle | Yong YANG Yi-ming GUO Hai-xin WANG Hua PENG Dong-ling ZHANG Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals Tongxin xuebao single-channel mixture adjacent-frequency interference carrier initial phases estimation modified Cramer-Rao bound |
| title | Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals |
| title_full | Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals |
| title_fullStr | Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals |
| title_full_unstemmed | Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals |
| title_short | Carrier initial phases estimation for single-channel adjacent-frequency mixture of digitally modulated signals |
| title_sort | carrier initial phases estimation for single channel adjacent frequency mixture of digitally modulated signals |
| topic | single-channel mixture adjacent-frequency interference carrier initial phases estimation modified Cramer-Rao bound |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2016205/ |
| work_keys_str_mv | AT yongyang carrierinitialphasesestimationforsinglechanneladjacentfrequencymixtureofdigitallymodulatedsignals AT yimingguo carrierinitialphasesestimationforsinglechanneladjacentfrequencymixtureofdigitallymodulatedsignals AT haixinwang carrierinitialphasesestimationforsinglechanneladjacentfrequencymixtureofdigitallymodulatedsignals AT huapeng carrierinitialphasesestimationforsinglechanneladjacentfrequencymixtureofdigitallymodulatedsignals AT donglingzhang carrierinitialphasesestimationforsinglechanneladjacentfrequencymixtureofdigitallymodulatedsignals |