A Novel Approach to Improve GNSS Precise Point Positioning During Strong Ionospheric Scintillation: Theory and Demonstration. - Bruno Cesar Vani; Biagio Forte; João Francisco Galera Monico; Susan Skone; Milton Hirokazu Shimabukuro; Alison de Oliveira Moraes; Igor Ponte Portella; Haroldo Antonio Marques (IEEE Trans. Veh. Technol., 2019)