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

doi:10.3390/electronics13132648

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	Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm
	Mao, Zhiwei 1,2; Wu, Huabing 1,2,3; Zhao, Dangli1,2 ; Jiang, Xingbo 4
	2024-07-01
发表期刊	ELECTRONICS
卷号	13 期号:13 页码:16
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.
关键词	PNT system 5G 5G NR time service signal chaotic orthogonal composite sequence timing signal capture
资助者	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
DOI	10.3390/electronics13132648
关键词[WOS]	SYNCHRONIZATION
语种	英语
资助项目	Youth Innovation Promotion Association CAS[Y2023109]
资助者	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
WOS研究方向	Computer Science ; Engineering ; Physics
WOS类目	Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Physics, Applied
WOS记录号	WOS:001269522000001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/14493
专题	时间用户系统研究室
通讯作者	Wu, Huabing
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China 4.Xidian Univ, Sch Comp Sci & Technol, Xian 710071, 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.