Abstract
LEO navigation augmentation system has become an inevitable choice and development direction to meet the urgent requirements of higher precision, higher reliability and higher security PNT in emerging satellite navigation applications. Therefore, the compatibility between LEO navigation augmentation signal and GNSS signal has become a problem to be solved, the compatibility design requirements of LEO navigation augmentation signals and GNSS signals are mainly reflected in two aspects: 1. Reasonable compatibility design can make traditional GNSS receivers suitable for LEO navigation augmentation system through a small number of system upgrades, which expands the service scope of the system and improves the service quality; 2. Systematic compatibility design needs to cover on-board transceiver isolation technology, reduce the complexity of payload co frequency integration and improve system reliability. In this paper, LEO navigation augmentation compatible signal is studied from two perspectives of ground user and payload realization respectively, and the chip level pulse quasi-continuous navigation signal CPQC-NAV is optimized, which is studied in time domain, frequency domain and correlation domain. On this base, we design receiver algorithm for payload and ground user, and the performance of navigation system is theoretically analyzed. The accuracy of theoretical analysis is verified by simulation test and the feasibility of system design is verified by hardware platform. Results show that 1. the receiver of chip level pulse quasi-continuous navigation signal has good compatibility with GNSS, CPQC-NAV shows pulse characteristics in time domain and continuity in measurement domain, which has no impact on the augmentation service of LEO navigation. 2. With CPQC-NAV, the problem of the CO-frequency transceiver of the satellite payload has been effectively solved.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Li, R., Zheng, S., Wang, E., et al.: Advances in BeiDou Navigation Satellite System (BDS) and satellite navigation augmentation technologies. Satellite Navig. 1(1), 12 (2020)
Hein, G.W.: Status, perspectives and trends of satellite navigation. Satellite Navig. 1(1), 22 (2020)
De Selding, P.B.: Virgin, Qualcomm invest in OneWeb satellite internet venture [EB/OL], 15 January 2015
Magan, V.: Samsung exec envisions LEO constellation for satellite internet connectivity [EB/OL], 18 August 2015
De Selding, P.B.: Boeing proposes big satellite constellations in V-and C-bands [EB/OL], 23 June 2016
Yansong, M., Lang, B., Ying, W., et al.: Global navigation augmentation system based on Hongyan satellite constellation. Space Int. 10, 20–27 (2018)
CNAGA: CASIC plans to launch 156 small satellites for the Hongyun Program [EB/OL], 3 March 2018
Reid, T.G.R., Neish, A.M., Walter, T.F., et al.: Leveraging commercial broad-band LEO constellations for navigation. In: The International Technical Meeting of the Satellite Division of the Institute of Navigation (2016)
Jun, Z., Jiasong, W., Jianrong, C., et al.: Precise orbit determination of HY-2 satellite Doris centimeter. Acta Astronaut. 34(2), 163–169 (2013)
Reid, T.G., Neish, A.M., Walter, T.F., et al.: Leveraging commercial broadband LEO constellations for navigating. In: Proceedings of the 29th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS+2016), Portland, Oregon: ION, pp. 2300–2314 (2016)
Tang, Z.: Theoretical research on GNSS signal design and evaluation. Huazhong University of Science and Technology (2009)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Aerospace Information Research Institute
About this paper
Cite this paper
Li, T., Yan, T., Bian, L., Qu, B., Wang, Y., Meng, Y. (2022). Design and Validation of CPQC-NAV, A New LEO Navigation Augmentation Signal Compatible with GNSS. In: Yang, C., Xie, J. (eds) China Satellite Navigation Conference (CSNC 2022) Proceedings. CSNC 2022. Lecture Notes in Electrical Engineering, vol 909. Springer, Singapore. https://doi.org/10.1007/978-981-19-2580-1_7
Download citation
DOI: https://doi.org/10.1007/978-981-19-2580-1_7
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-19-2579-5
Online ISBN: 978-981-19-2580-1
eBook Packages: EngineeringEngineering (R0)