@inproceedings{56ce89e4517747fe844683e1d7893687,
title = "Doppler GDOP Lower Bound for Different LEO Constellations of Opportunity Positioning",
abstract = "To address the weak anti-interference capability of the conventional global satellite navigation system (GNSS), a navigation system based on the opportunity signal of LEO constellation is studied to complement and enhance it. Since LEO satellite opportunity signal generally adopts the Doppler positioning method different from GNSS, the Doppler geometric dilution of precision factor (DGDOP) lower bound expression and variation law for LEO satellite positioning are studied in depth in this paper, to assess the limitation and potential of positioning in different LEO constellations. The paper analyzes the variation law of visible satellites and DGDOP with latitude for different LEO constellations using the actual LEO satellite orbit data output from the system tool kit (STK) platform, and verifies the validity of the analytical expression for the lower bound of DGDOP.",
keywords = "DGDOP, LEO, lower bound, opportunity signal",
author = "Danyao Wang and Honglei Qin and Enfei Piao",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 5th International Conference on Electronic Engineering and Informatics, EEI 2023 ; Conference date: 30-06-2023 Through 02-07-2023",
year = "2023",
doi = "10.1109/EEI59236.2023.10212488",
language = "英语",
series = "2023 5th International Conference on Electronic Engineering and Informatics, EEI 2023",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "474--479",
booktitle = "2023 5th International Conference on Electronic Engineering and Informatics, EEI 2023",
address = "美国",
}