BDS PPP-IAR: Apply and assess the satellite corrections from different regional networks

•Assess the performances of GNSS positioning and integer ambiguity resolution based on the satellite-related corrections from different regional networks.•Prove the feasibility of the interchangeable network corrections in high precision positioning and successful fixing ambiguity.•Provide a strategy that could improve the robustness and integrity of the commercial positioning services for small- or medium-sized enterprises.•Discuss the potential factors that influence the ambiguity fixed positioning solutions by using different network corrections.