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Modelling and simulation of communication system receiver for unmanned aircraft
Hoferek, Jakub ; Prokeš, Aleš (referee) ; Maršálek, Roman (advisor)
This diploma thesis deals with the simulation of the radio communication system for satellite control of unmanned aircraft, namely the command and control communication link – the forward link. The aim of the thesis is to create a simulator in the Matlab environment. The simulator includes a model of the transmitter, radio channel and receiver. Four-state CPM modulation with partial response and filtered symbol shape is used. The radio channel performs noise, frequency Doppler shift and time delay to the received signal. Subsequently, in the Acquisition Unit, the Doppler shift and time delay are detected and compensated. At the end of the thesis, the simulation results of the presented model are presented in the form of graphs đť¸s/đť‘0.
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Modelling and simulation of communication system receiver for unmanned aircraft
Hoferek, Jakub ; Prokeš, Aleš (referee) ; Maršálek, Roman (advisor)
This diploma thesis deals with the simulation of the radio communication system for satellite control of unmanned aircraft, namely the command and control communication link – the forward link. The aim of the thesis is to create a simulator in the Matlab environment. The simulator includes a model of the transmitter, radio channel and receiver. Four-state CPM modulation with partial response and filtered symbol shape is used. The radio channel performs noise, frequency Doppler shift and time delay to the received signal. Subsequently, in the Acquisition Unit, the Doppler shift and time delay are detected and compensated. At the end of the thesis, the simulation results of the presented model are presented in the form of graphs đť¸s/đť‘0.
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Rusko-čínské ekonomické vztahy a jejich vliv na Rusko
Lapenko, Aleksei ; Žamberský, Pavel (advisor) ; Jedlinský, Jakub (referee)
The establishment of first diplomatic and economic relations between Russia and China has relatively short historical roots despite its geographic proximity. Nevertheless, the substantial growth of trade and investment cooperation between countries gained momentum in the modern time after the fall of the Soviet Union. The increased Russian production of oil and gas together with rise in its prices and rapid development of Chinese economy facilitated their economic interaction over the last decade. However, within last years, Russia faced with the external challenges in terms of slumping oil prices and geopolitical and economic isolation by the Western countries after the annexation of the Crimea peninsula. In this way, Russian government took a decision to make an Asian pivot towards the largest economy in the world - China and, thus, intensifying the already established economic ties. The further progress of Russian-Chinese partnership is going to be dependent on the implementation of the planned strategic initiatives and various external political and economic factors.
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The changing role of Russia and China in the Kazakhstan's energy sector
Lacina, Jiří ; Cibulková, Petra (advisor) ; Knotková, Vladimíra (referee)
The following thesis deals with the changing role of Russia and China in the Kazakhstan's Energy sector. It focuses exclusively on oil and gas sector. The first part analyses the changing role of Russia as an important player in these sectors while the second part analyses China's role. The emphasis is put on Kazakhstan's diversification of export routes in relation to Russia and its interests. China is analysed as an independent player with its own interests, as a potential competitor to Russia and as a significant economic player offering Kazakhstan alternatives on its path towards the diversification of the export routes.
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