1. China Satellite Navigation Office (2018) BeiDou navigation satellite system signal in space interface control document open service signal B3I (Version 1.0). Beijing
2. Odijk D, Teunissen PJG (2012) Characterization of between-receiver GPS-Galileo inter-system biases and their effect on mixed ambiguity resolution. GPS Solut 17(4):521–533
3. Cai C, Gao Y (2008) Estimation of GPS-GLONASS system time difference with application to PPP. In: Proceedings of international technical meeting of the satellite division of the institute of navigation, pp 2880–2887
4. Sui X, Shi C, Xu A et al (2018) The Stability of GPS/BDS inter-system biases at the receiver end and its effect on ambiguity resolution. Geomatics and Information Science of Wuhan University, no 2
5. Montenbruck O, Hauschild A, Hessels U (2010) Characterization of GPS/GIOVE sensor stations in the CONGO network. GPS Solut 15(3):193–205