Fig. 2From: A method of improving ambiguity fixing rate for post-processing kinematic GNSS dataSchematic diagram of the ADBI method. The curves in the black frame denote the status of ambiguities for one satellite in forward KF (top) and backward KF (bottom) during the same period of time. Each gray frame denotes the status of ambiguity after each step of ADBI. In this figure, “amb” means ambiguityBack to article page