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Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm

文献类型：期刊论文

作者Mao, Zhiwei3,4; Wu, Huabing2,3,4; Zhao, Dangli3,4; Jiang, Xingbo1
刊名ELECTRONICS
出版日期2024-07-01
卷号13期号:13页码:16
关键词PNT system 5G 5G NR time service signal chaotic orthogonal composite sequence timing signal capture
DOI10.3390/electronics13132648
英文摘要Establishing a national comprehensive PNT (Positioning, Navigation, and Timing) system has become a consensus among major countries worldwide. As a crucial component in completing the entire PNT system, the 5G NR (new radio) time service signal plays a vital role. This paper proposes a 5G NR time service signal that uses a spread spectrum system, shares the 5G signal frequency band, but does not occupy the bandwidth of the 5G communication signal. This timing service signal has relatively low power, making it appear "submerged" within the power of the 5G communication signal. The spread spectrum code for this timing signal employs the chaotic orthogonal composite sequence proposed in this paper. Compared to traditional spread spectrum sequences, this sequence offers better security than m-sequences, improved autocorrelation than Walsh sequences, and an effective suppression of the short-period characteristics exhibited when the Skew Tent-Map chaotic sequence takes special values. This paper simulates the capture of the 5G NR time service signal in an environment with a signal-to-noise ratio of 10 dB using an FFT-based parallel code phase search algorithm, successfully capturing the 5G NR time service signal and verifying the feasibility of the proposed chaotic orthogonal composite sequence as a spread spectrum code.
WOS关键词SYNCHRONIZATION
资助项目Youth Innovation Promotion Association CAS[Y2023109]
WOS研究方向Computer Science ; Engineering ; Physics
语种英语
WOS记录号WOS:001269522000001
出版者MDPI
资助机构Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
源URL[http://210.72.145.45/handle/361003/14493]  
专题国家授时中心_时间用户系统研究室
通讯作者Wu, Huabing
作者单位1.Xidian Univ, Sch Comp Sci & Technol, Xian 710071, Peoples R China
2.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China
3.Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 101408, Peoples R China
4.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
推荐引用方式
GB/T 7714		 Mao, Zhiwei,Wu, Huabing,Zhao, Dangli,et al. Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm[J]. ELECTRONICS,2024,13(13):16.
APA Mao, Zhiwei,Wu, Huabing,Zhao, Dangli,&Jiang, Xingbo.(2024).Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm.ELECTRONICS,13(13),16.
MLA Mao, Zhiwei,et al."Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm".ELECTRONICS 13.13(2024):16.

入库方式： OAI收割

来源：国家授时中心

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