Home Journals Articles Updates About
CN
image
收藏切换
Improved Method for GPS Carrier-to-Noise Ratio Estimation
收藏切换
PDF
Li ZHOU, Shuwen PENG, Jin ZHANG, Qing LIU, Yuchen JIANG
Journal of Telemetry, Tracking and Command | 2024, 45(5) : 82 - 90
Less
收藏切换
Journal of Telemetry, Tracking and Command | 2024, 45(5): 82-90
• TT & C Communication and Navigation •
Improved Method for GPS Carrier-to-Noise Ratio Estimation
Full
Li ZHOU, Shuwen PENG, Jin ZHANG, Qing LIU, Yuchen JIANG
Affiliations
  • Shanghai Aerospace Electronic Technology Institute, Shanghai 201109, China
Published: 2024-09-15 doi: 10.12347/j.ycyk.20240530001
Outline
收藏切换

In order to find a carrier-to-noise ratio estimation method with low computation and strong practicality, this paper draws on the experience of the classical variance summing method and proposes an improved algorithm. The distribution of the absolute value of the I-branch accumulative value is deduced when stably tracking GPS signals, and an expression for estimating the carrier-to-noise ratio is given based on its statistical characteristics. The Q-branch accumulative value is not necessary in this algorithm. From the aspects of estimation accuracy and computation, the improved algorithm is verified by simulation and actual measurement data analysis. The results show that the overall performance of the improved algorithm is equivalent, with an error of less than 0.4 dBHz, the stability is better than that of the classical variance summing method and narrow to wide power ratio method, and the computation is reduced by 50% compared to that the classical algorithm. The method has certain practicality in some receivers with limited hardware resources.

Carrier-to-noise ratio estimation  /  Variance summing method  /  Estimation accuracy  /  Computation  /  GPS
Li ZHOU, Shuwen PENG, Jin ZHANG, Qing LIU, Yuchen JIANG. Improved Method for GPS Carrier-to-Noise Ratio Estimation[J]. Journal of Telemetry, Tracking and Command, 2024 , 45 (5) : 82 -90 . DOI: 10.12347/j.ycyk.20240530001
Appendix
Less
Year 2024 volume 45 Issue 5
PDF
92
45
Cite this Article
BibTeX
Article Info
doi: 10.12347/j.ycyk.20240530001
  • Receive Date：2024-05-30
  • Online Date：2026-03-20
  • Published：2024-09-15
Article Data
Affiliations
History
  • Received：2024-05-30
  • Revised：2024-06-11
Affiliations
    Shanghai Aerospace Electronic Technology Institute, Shanghai 201109, China
References
Share
https://castjournals.cast.org.cn/joweb/ycyk/EN/10.12347/j.ycyk.20240530001
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House