Home Journals Articles Updates About
CN
image
收藏切换
A Low-computation GNSS Acquisition Method Based on Synthesized Doppler Frequency Hypotheses
收藏切换
PDF
Yi WU, Chao WU, Feijie QIAN, Xiuwei LIN
Telecommunication Engineering | 2025, 65(11) : 1903 - 1911
Less
收藏切换
Telecommunication Engineering | 2025, 65(11): 1903-1911
• Electronics and Information Engineering •
A Low-computation GNSS Acquisition Method Based on Synthesized Doppler Frequency Hypotheses
Full
Yi WU, Chao WU, Feijie QIAN, Xiuwei LIN
Affiliations
  • School of Communication Engineering，Hangzhou Dianzi University，Hangzhou 310018，China
Published: 2025-11-28 doi: 10.20079/j.issn.1001-893x.240429001
Outline
收藏切换

To reduce the computations of parameters estimation in high-dynamic and long integration global navigation satellite system(GNSS) signal detection applications,the authors propose a low-computation GNSS acquisition method (LGAM) suitable for high-dynamic environment. The goal of LGAM is to apply the synthetic Doppler frequency hypothesis testing (SDHT) method to the acquisition of high dynamic GNSS signals with Doppler rate and bit flipping. Firstly,sparse Doppler frequency(SDF) process is implemented by coarse Doppler estimation,and post-correlation signal model is derived based on SDF structure. Then,in order to improve the detection efficiency of Doppler and Doppler rate, double-FFT based detection is proposed based on the post-correlation signal model for parameters estimation. The results demonstrate that in high dynamic environments, when the signal-to-noise ratio (SNR ) is higher than -43 dB, the computational complexity based on FFT method is 15 times that of LGAM1 and 780 times that of LGAM2.

GNSS  /  high-dynamic environment  /  compressed acquisition  /  frequency parameters estimation
Yi WU, Chao WU, Feijie QIAN, Xiuwei LIN. A Low-computation GNSS Acquisition Method Based on Synthesized Doppler Frequency Hypotheses[J]. Telecommunication Engineering, 2025 , 65 (11) : 1903 -1911 . DOI: 10.20079/j.issn.1001-893x.240429001
Appendix
Less
Year 2025 volume 65 Issue 11
PDF
86
45
Cite this Article
BibTeX
Article Info
doi: 10.20079/j.issn.1001-893x.240429001
  • Receive Date：2024-04-29
  • Online Date：2026-04-15
  • Published：2025-11-28
Article Data
Affiliations
History
  • Received：2024-04-29
  • Revised：2024-09-24
Affiliations
    School of Communication Engineering，Hangzhou Dianzi University，Hangzhou 310018，China
References
Share
https://castjournals.cast.org.cn/joweb/dxjs/EN/10.20079/j.issn.1001-893x.240429001
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