Augmentation Signals Broadcasting From High Altitude Platforms

Provision of telecommunication services by means of High Altitude Platforms (HAPs) is becoming a relevant topic of interest for the research activities on future generation systems. In particular, they appear as a privileged infrastructure for the provision of navigation and positioning services: they can exploit the best features of both satellitebased and terrestrial augmentation systems for Global Navigation Satellite System. In this paper we describe the design of a novel HAP-based segment studied under the European HeliNet project; in particular, we give an overview of the current status of the research activity and we focus on the latest results dealing with the platform localization and integrity monitoring system applications.