Design and implementation of the CAPS receiver

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	Design and implementation of the CAPS receiver
	Hu YongHui; Hua Yu; Hou Lei; Wei JingFa; Wu JianFeng
	2009
发表期刊	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
ISSN	1672-1799
卷号	52 期号:3 页码:445-457
摘要	In this paper, based on analyses of the Chinese Area Positioning System (CAPS) satellite (GEO satellite) resources and signal properties, the signal power at the port of the receiver antenna is estimated, and the implementation projects are presented for a switching band C to band L CAPS C/A code receiver integrated with GPS receiver suite and for a CAPS dual frequency P code receiver. A microstrip receiving antenna is designed with high sensitivity and wide beam orientation, the RF front end of the C/A code and P code receivers, and a processor is designed for the navigation baseband. A single frequency CAPS C/A code receiver and a CAPS dual frequency P code receiver are built at the same time. A software process flow is provided, and research on relatively key techniques is also conducted, such as signal searching, code loop and carrier loop algorithms, a height assistant algorithm, a dual frequency difference speed measurement technique, a speed measurement technique using a single frequency source with frequency assistance, and a CAPS time correcting algorithm, according to the design frame of the receiver hardware. Research results show that the static plane positioning accuracy of the CAPS C/A code receiver is 20.5-24.6 m, height accuracy is 1.2-12.8 m, speed measurement accuracy is 0.13-0.3 m/s, dynamic plane positioning accuracy is 24.4 m, height accuracy is 3.0 m, and speed measurement accuracy is 0.24 m/s. In the case of C/A code, the timing accuracy is 200 ns, and it is also shown that the positioning accuracy of the CAPS precise code receiver (1 sigma) is 5 m from south to north, and 0.8 m from east to west. Finally, research on positioning accuracy is also conducted.
部门归属	时间用户研究室
关键词	Caps Receiver Hardware Key Algorithm
收录类别	SCI
语种	英语
WOS记录号	WOS:000264106800017
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/4794
专题	时间用户系统研究室
推荐引用方式 GB/T 7714	Hu YongHui,Hua Yu,Hou Lei,et al. Design and implementation of the CAPS receiver[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(3):445-457.
APA	Hu YongHui,Hua Yu,Hou Lei,Wei JingFa,&Wu JianFeng.(2009).Design and implementation of the CAPS receiver.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(3),445-457.
MLA	Hu YongHui,et al."Design and implementation of the CAPS receiver".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.3(2009):445-457.