1. Cabinet Office. (2018). Quasi-Zenith satellite system interface specification centimeter level augmentation service.
2. Chen, J., Hu, X., Tang, C., Zhou, S., Yang, Y., Pan, J., Ren, H., Ma, Y., Tian, Q., Wu, B., & Yu, Y. (2020). SIS accuracy and service performance of the BDS-3 basic system. Science China: Physics, Mechanics and Astronomy, 63(6), 269511.
3. CSNO. (2019a). Development of the BeiDou Navigation Satellite System (Version 4.0). Retrieved February 24, 2023, from http://www.beidou.gov.cn/xt/gfxz/201912/P020191227430565455478.pdf
4. CSNO. (2019b). BeiDou Navigation Satellite System signal in space interface control document-precise point positioning service signal PPP-B2b (China Satellite Navigation Office, 2019).
5. ESA (European GNSS Agency). (2019). PPP-RTK market and technology report.