Non-coherent demodulation algorithm of MSK based on differential composite
An algorithm of MSK demodulation based on differential composite grid was proposed. The MSK differential composite grid was constructed by phase deflection, and the optimal path in the composite grid was selected by comparing the likelihood function value to compensate the phase error of the Doppler...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2018-12-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000−436x.2018278/ |
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| _version_ | 1841539464458928128 |
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| author | Wenbiao TIAN Peng WANG Guosheng RUI Yang ZHANG |
| author_facet | Wenbiao TIAN Peng WANG Guosheng RUI Yang ZHANG |
| author_sort | Wenbiao TIAN |
| collection | DOAJ |
| description | An algorithm of MSK demodulation based on differential composite grid was proposed. The MSK differential composite grid was constructed by phase deflection, and the optimal path in the composite grid was selected by comparing the likelihood function value to compensate the phase error of the Doppler frequency offset. Theoretical analysis and simulation show that the performance of the algorithm was still close to the theoretical lower bound of the MSK non-coherent demodulation error rate when the phase error caused by the Doppler frequency offset was of the order of 10<sup>− 1</sup>rad magnitude. The algorithm extends the range of MSK demodulation anti-Doppler frequency offset, and is superior to similar algorithm in complexity and decision delay time, slightly higher than 1 symbol differential algorithm corresponding value, which provides a new means for demodulation of MSK under Doppler frequency offset. |
| format | Article |
| id | doaj-art-e513e0928f0d42d0a9b4f98d38ba4f4e |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2018-12-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e513e0928f0d42d0a9b4f98d38ba4f4e2025-01-14T07:16:01ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2018-12-013916016659722539Non-coherent demodulation algorithm of MSK based on differential compositeWenbiao TIANPeng WANGGuosheng RUIYang ZHANGAn algorithm of MSK demodulation based on differential composite grid was proposed. The MSK differential composite grid was constructed by phase deflection, and the optimal path in the composite grid was selected by comparing the likelihood function value to compensate the phase error of the Doppler frequency offset. Theoretical analysis and simulation show that the performance of the algorithm was still close to the theoretical lower bound of the MSK non-coherent demodulation error rate when the phase error caused by the Doppler frequency offset was of the order of 10<sup>− 1</sup>rad magnitude. The algorithm extends the range of MSK demodulation anti-Doppler frequency offset, and is superior to similar algorithm in complexity and decision delay time, slightly higher than 1 symbol differential algorithm corresponding value, which provides a new means for demodulation of MSK under Doppler frequency offset.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000−436x.2018278/Doppler frequency offsetdifferential composite gridoptimal pathdemodulation scheme |
| spellingShingle | Wenbiao TIAN Peng WANG Guosheng RUI Yang ZHANG Non-coherent demodulation algorithm of MSK based on differential composite Tongxin xuebao Doppler frequency offset differential composite grid optimal path demodulation scheme |
| title | Non-coherent demodulation algorithm of MSK based on differential composite |
| title_full | Non-coherent demodulation algorithm of MSK based on differential composite |
| title_fullStr | Non-coherent demodulation algorithm of MSK based on differential composite |
| title_full_unstemmed | Non-coherent demodulation algorithm of MSK based on differential composite |
| title_short | Non-coherent demodulation algorithm of MSK based on differential composite |
| title_sort | non coherent demodulation algorithm of msk based on differential composite |
| topic | Doppler frequency offset differential composite grid optimal path demodulation scheme |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000−436x.2018278/ |
| work_keys_str_mv | AT wenbiaotian noncoherentdemodulationalgorithmofmskbasedondifferentialcomposite AT pengwang noncoherentdemodulationalgorithmofmskbasedondifferentialcomposite AT guoshengrui noncoherentdemodulationalgorithmofmskbasedondifferentialcomposite AT yangzhang noncoherentdemodulationalgorithmofmskbasedondifferentialcomposite |