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  1. No Access

    Article

    Evaluation of PPP-RTK based on BDS-3/BDS-2/GPS observations: a case study in Europe

    The Chinese BeiDou Navigation Satellite System (BDS) transited from regional (Asia–Pacific) to global on December 28, 2018. In this study, the performance of PPP-RTK based on BDS-3/BDS-2/GPS observations is an...

    Zhao Li, Wu Chen, Rengui Ruan, Xuexi Liu in GPS Solutions (2020)

  2. No Access

    Article

    Between-satellite single-difference integer ambiguity resolution in GPS/GNSS network solutions

    In various GNSS applications with high requirements for precision, integer ambiguity resolution (IAR) is of great significance for taking full advantage of precise carrier-phase observations. Until now, there ...

    Rengui Ruan, Ziqing Wei in Journal of Geodesy (2019)

  3. No Access

    Article

    Computationally efficient dual-frequency uncombined precise orbit determination based on IGS clock datum

    Using uncombined (UC) or undifferenced original observations has become a research topic in the global navigation satellite system (GNSS) community. This far, precise orbit determination (POD) with ionospheric...

    Tian Zeng, Lifen Sui, Guorui **ao, Rengui Ruan, **aolin Jia in GPS Solutions (2019)