Method for Estimating the Optimal Coefficient of L1C/B1C Signal Correlator Joint Receiving
文献类型：期刊论文
| 作者 | Guo, Yao2,3,4; Zou, Decai2,3,4 ; Wang, Xue1; Rao, Yongnan2,3,4; Shang, Peng2,3,4; Chu, Ziyue2,3,4; Lu, Xiaochun2,3,4
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| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 14期号:6页码:21 |
| 关键词 | GNSS MBOC correlator joint receiving B1C L1C high precision positioning combination coefficient |
| DOI | 10.3390/rs14061401 |
| 英文摘要 | The design of a modern Global Navigation Satellite System (GNSS) has been exceptionally valued by the military and civilians of various countries. The inclusion of the pilot channel in addition to the navigation data channel is considered one of the major changes in GNSS modernization. Schemes of an equal weight combination (1:1 combination) and power ratio combination for data and pilot are primarily adopted by traditional receivers. With the emergence of the new data and pilot modulation signals with unequal power, such as L1C at Global Positioning System (GPS) L1 frequency and B1C at BeiDou Navigation Satellite System (BDS) B1 frequency, the traditional combination coefficient cannot achieve optimal reception performance. Considering the influence of the combination coefficient on the reception performance, the optimal coefficient of the correlator joint is estimated in this paper. The entire architecture of the data/pilot correlator joint tracking and positioning with unequal power is given. Based on the equivalence principle of the correlator joint and the discriminator joint, the optimal coefficient of the carrier loop is determined. A mathematical model of joint code tracking accuracy is established, and the optimal coefficient of the code loop is determined. The real-life satellite signal and simulation results show that the amplitude-ratio combined scheme is the best for receiving of correlator joints, followed by the power-ratio combination scheme and, finally, the 1:1 combination scheme. It is worth mentioning that the positioning accuracy of the amplitude-ratio combination is improved by 2% compared to the 1:1 combination, and by 1.3% compared to the power-ratio combination for B1C signal. The positioning accuracy of the amplitude-ratio combination is improved by 2.37% compared to the 1:1 combination, and by 1.6% compared to the power-ratio combination for L1C signal. The conclusions of this paper are validated for the traditional data/pilot with an equal power allocation. The techniques and test results provide technical support for GNSS high-precision-user receivers. |
| 资助项目 | National Natural Science Foundation of China[41974032] ; Natural Science Foundation of Shanxi province, China[2021JM-323] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000774235800001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanxi province, China ; Natural Science Foundation of Shanxi province, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanxi province, China ; Natural Science Foundation of Shanxi province, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanxi province, China ; Natural Science Foundation of Shanxi province, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanxi province, China ; Natural Science Foundation of Shanxi province, China |
| 源URL | [http://210.72.145.45/handle/361003/13838]  |
| 专题 | 国家授时中心_导航与通信研究室 |
| 通讯作者 | Guo, Yao |
| 作者单位 | 1.Xidian Univ, Inst Informat Sensing, Xian 713300, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Xian 710600, 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 | Guo, Yao,Zou, Decai,Wang, Xue,et al. Method for Estimating the Optimal Coefficient of L1C/B1C Signal Correlator Joint Receiving[J]. REMOTE SENSING,2022,14(6):21. |
| APA | Guo, Yao.,Zou, Decai.,Wang, Xue.,Rao, Yongnan.,Shang, Peng.,...&Lu, Xiaochun.(2022).Method for Estimating the Optimal Coefficient of L1C/B1C Signal Correlator Joint Receiving.REMOTE SENSING,14(6),21. |
| MLA | Guo, Yao,et al."Method for Estimating the Optimal Coefficient of L1C/B1C Signal Correlator Joint Receiving".REMOTE SENSING 14.6(2022):21. |
入库方式： OAI收割
来源：国家授时中心
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