CONSIDERATIONS FOR FUTURE IGS RECEIVERS

Future IGS receivers are considered against the backdrop of GNSS signal modernization and the IGS's goal of further improving the accuracy of its products. The purpose of this paper is to provide IGS members with a guide to making decisions about GNSS receivers. Modernized GNSS signals are analyzed with a view toward IGS applications. A schedule for minimum IGS receiver requirements is proposed. Features of idealized conceptual receivers are discussed. The prospects for standard com- mercial receivers and for software-deflned GNSS receivers are examined. Recommendations are given for how the IGS should proceed in order to maximally beneflt from the transformation in GNSS that will occur over the next decade.