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Fast Acquisition Scheme of the Spread Spectrum Signals for Satellite Communications
Alternative TitleWOS:000532785300011;20202008667836
Rao, H.; Liang, X. F.; Shen, M.; An, J. S.
Source PublicationJOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS
2020
Volume65Issue:4Pages:449-456
DOI10.1134/S1064226920040063
ISSN1064-2269
Language英语
AbstractA four-channel parallel acquisition scheme combining partial matched filters and fast Fourier transforms (PMF-FFT) is proposed for the fast acquisition of the spread spectrum signals in satellite communication terminals installed into the offshore buoys with the high-dynamic movement, which is used tofinish data communication missions between the buoys and the satellite. Compared with traditional code phase FFT scheme, the new scheme reduces the maximum acquisition time to 26.5% and the maximum computation amount to 46.9%. It also improves about 4 times in the frequency resolution and 1.6 dB in the receiving sensitivity at the expense of computation complexity compared to PMF-FFT scheme. The parallel PMF-FFT scheme greatly reduces scallop loss, thus ensuring acquisition sensitivity. The parallel PMF-FFT scheme within the satellite communication terminal can ensure the fast and stable tracking of satellite signal by the violently moving antenna within 20 ms under level-4 sea state.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7672
Collection中国科学院国家空间科学中心
Affiliation1.[Rao, H.
2.Liang, X. F.
3.An, J. S.] Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
4.[Rao, H.] Univ Chinese Acad Sci, Beijing 100190, Peoples R China
5.[Shen, M.] Aalborg Univ, Dept Elect Syst, DK-9220 Aalborg, Denmark
Recommended Citation
GB/T 7714
Rao, H.,Liang, X. F.,Shen, M.,et al. Fast Acquisition Scheme of the Spread Spectrum Signals for Satellite Communications[J]. JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS,2020,65(4):449-456.
APA Rao, H.,Liang, X. F.,Shen, M.,&An, J. S..(2020).Fast Acquisition Scheme of the Spread Spectrum Signals for Satellite Communications.JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS,65(4),449-456.
MLA Rao, H.,et al."Fast Acquisition Scheme of the Spread Spectrum Signals for Satellite Communications".JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS 65.4(2020):449-456.
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