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Contrast in image aquired by scintillation SE detector for VP SEM
Koudela, Oldřich ; Špinka, Jiří (referee) ; Jirák, Josef (advisor)
First part of this thesis is a theoretical essay which deals with the basics of scanning electron microscopy, with structure and function of a scanning electron microscope, its’ special case of an various pressure scanning electron microscope, electron interaction with surrounding environment and with a scintillation detector. The applied part of the thesis is focused on evaluation of material contrast on Cu-W specimen. Material contrast is evaluated for different pressures of water vapors in the microscope specimen chamber and for different detection conditions.
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RAKE receiver for the UMTS system
Koudela, Oldřich ; Gleissner, Filip (referee) ; Prokopec, Jan (advisor)
This thesis is focused on theoretical description of procedures which take place in the UMTS system when processing a signal, its spreading with modulation technique DS SS(direct sequence spread spectrum), and subsequent processing in the RAKE receiver. Another focus is made in the basic functions of a RAKE receiver: match filtering, descrambling, despreading and integration. Aditionally, this thesis is suplemented with the results of a RAKE receiver simulation for a small number of samples in the MATLAB software and creation of aplication that simulates the receiver and its results.
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RAKE receiver for the UMTS system
Koudela, Oldřich ; Gleissner, Filip (referee) ; Prokopec, Jan (advisor)
This thesis is focused on theoretical description of procedures which take place in the UMTS system when processing a signal, its spreading with modulation technique DS SS(direct sequence spread spectrum), and subsequent processing in the RAKE receiver. Another focus is made in the basic functions of a RAKE receiver: match filtering, descrambling, despreading and integration. Aditionally, this thesis is suplemented with the results of a RAKE receiver simulation for a small number of samples in the MATLAB software and creation of aplication that simulates the receiver and its results.
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Contrast in image aquired by scintillation SE detector for VP SEM
Koudela, Oldřich ; Špinka, Jiří (referee) ; Jirák, Josef (advisor)
First part of this thesis is a theoretical essay which deals with the basics of scanning electron microscopy, with structure and function of a scanning electron microscope, its’ special case of an various pressure scanning electron microscope, electron interaction with surrounding environment and with a scintillation detector. The applied part of the thesis is focused on evaluation of material contrast on Cu-W specimen. Material contrast is evaluated for different pressures of water vapors in the microscope specimen chamber and for different detection conditions.
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