سال انتشار: ۱۳۹۱

محل انتشار: ششمین کنفرانس ملی انجمن علمی فرماندهی و کنترل ایران

تعداد صفحات: ۵

نویسنده(ها):

Mohamad Hossein Moghaddam – Digital Communication Laboratory, SAIRAN, Tehran, Iran
Ghasem Assarzadeh –

چکیده:

The use of Unmanned Aerial Vehicles (UAVs) in collaborative missions is an increasing research area for military planners. In this paper a class of aeronautical wide-band channel models is proposed, featuring takeoff and landing situations, and en-route scenarios for ground–air link. Typical and worst case parameter sets are suggested, based on published measurement results and empirical data. The models are suitable for channel emulators that can be easily implemented on digital computers or in hardware and thus are useful for the validation of digital aeronautical links. A time-domain implementation of such a channel emulator is derived, and results for a typical multi-carrier system based on DVB-S2 standard using OFDM modulation and LDPC coding are presented. It is shown that the scenarios have distinguishable performance results depending on the underlying maximum ranges and shapes of the Doppler and the presence of a line-of-sight path