SCHUN - a Hybrid Land Mobile Satellite Channel Simulator Enhanced for Multipath Modelling Applied to Satellite Navigation Systems

摘要

This paper deals with land mobile satellite channel modelling and addresses the specific issue of channel impairments in urban environments for mobile applications with a particular focus on multipath modelling and wideband representation of the channel. This paper introduces a new land mobile satellite channel simulator, SCHUN (Simplified CHannel for Urban Navigation), based on a hybrid physical-statistical approach satisfying versatility, accuracy and fast computation requirements. The SCHUN simulator has been designed to answer specific needs of satellite diversity, receiving diversity, polarisation diversity or frequency diversity. Furthermore, the SCHUN simulator has been validated with respect to two measurements campaigns addressing satellite communication and satellite navigation applications.