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Quadrocopter - Sensory Subsytem
Bradáč, František ; Šolc, František (referee) ; Žalud, Luděk (advisor)
This diploma thesis deals with processing of measured data from inertial navigation system in order these could be used for stabilization. There is general information about aerial vehicles called copters with emphasis on four-rotor construction called quadrocopter at first. Then mathematical model of quadrocopter in state space form is derived, the particular implementation of university developed quadrocopter is described and the design of data processing algorithm is presented with measured results. Finally achieved results are discussed.
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Modelling Prosodic Dynamics for Speaker Recognition
Jančík, Zdeněk ; Fapšo, Michal (referee) ; Matějka, Pavel (advisor)
Most current automatic speaker recognition system extract speaker-depend features by looking at short-term spectral information. This approach ignores long-term information. I explored approach that use the fundamental frequency and energy trajectories for each speaker. This approach models prosody dynamics on single fonemes or syllables. It is known from literature that prosodic systems do not work as well the acoustic one but it improve the system when fusing. I verified this assumption by fusing my results with state of the art acoustic system from BUT. Data from standard evaluation campaigns organized by National Institute of Standarts and Technology are used for all experiments.
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Identification of emotional state using speech signal analysis
Navrátil, Michal ; Atassi, Hicham (referee) ; Smékal, Zdeněk (advisor)
The diploma thesis deals with the analysis of human emotional states speaker by the help of analyse speech signals. The thesis has two parts. In the first part, the process of speech generating is described in addition to the description of the commonly used pre-processing methods such as denoising or preemphasis. The first part also deals with the major and minor prosody features, these features are: the fundamental frequency, energy, spectral features and time domain features such as the speech rate. The second part of this thesis deals with a task of emotion recognition from the speech signal. When we accumulate sufficient of the number of recordings emotive state will be able to rekognize emotive state with high probability. All project is prepared for use in real time. The last part of this thesis thesis contains description and results of the experiments made on a large number of speech records.
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Vehicle data analysis
Starý, Přemysl ; Porteš, Petr (referee) ; Zháňal, Lubor (advisor)
The diploma thesis deals with a data analysis of the Formula Student race car. An attention is given for both, vehicle and driver. Processes of braking, turning and balance of car are analysed. Special attention is given to the dampers positions while driving and their settings. Dampers velocity histograms and ride frequencies graph are put together. Algorithms in MATLAB are suggested to reduce requested time for analysis. Scripts for displaying important channels are made. Analyzed data are used to create events which accelerate orientation in record and tell the most important information.
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Demands of the Teacher's Proffesion on the Teachers' Voice
Králová, Michaela ; Tichá, Alena (advisor) ; Koverdynský, Luděk (referee)
This dissertation thesis deals with the demands on teachers' voice and proper use of voice in the teacher's profession. The whole thesis consists of two parts: theoretical and practical. The theoretical part is divided into nine sections: the anatomy and physiology of the vocal tract, voice developement, comparison of spoken and singing voice, psychological impact on voice, voice defects and hygiene, voice reeducation, methods of voice diagnostics and voice acoustics. The research part presents the findings of acoustic voice measurement. Students (only women) of Faculty of Education in Prague participed in the research. The objective of this part was to asses the quality of students' voice and their voice readiness for future teaching.
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Analysis of overhead throw in baseball
Zelený, Michal ; Süss, Vladimír (advisor) ; Carboch, Jan (referee)
Title: Analysis of overhead throw in baseball Objectives: to describe the work of muscles musculus trapezius dexter, sinister and musculus pectoralis major dexter, sinister during the classic side overhead throw, the throw without using left arm, the front throw, the pitch from the floor and the pitch from the pitching hill using the surface electromyography; to compare all types of the throws and to determine the differences between them Methods: surface elektromyography, video content analysis Results: based on the results of the analysis we can say, that the activity of the chosen muscles during the various types of throws differs in intensity and in the duration of action potencial as well Keywords: baseball, surface elktromyography, overhead throw, throw without using left hand, front throw, pitch
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Analysis of baseball pitch
Josefus, Lukáš ; Süss, Vladimír (advisor) ; Carboch, Jan (referee)
Title: Analysis of baseball pitch Objectives: describe the aktivity of muscles during the baseball pitch, regular throw, front throw and throw without using left arm in baseball by surface electromyograpgy, compare the baseball pitch and other throw during a movement Methods: surface electromyography, videorecord Results: on the basis of analysis, i can assert, the aktivity of muscles during a baseball pitch is different in aktivity and also in intensity from other hindes of throw Keywords: baseball, electromyography, baseball pitch, overhead throw, regular throw, front throw, throw without left arm Powered by TCPDF (www.tcpdf.org)
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Detection of alcohol in speech signal
Kupka, Petr ; Holčík, Jiří (referee) ; Sigmund, Milan (advisor)
The diploma thesis Detection of Alcohol in Speech Signal first describes the effect of alcohol on the human body. The second part deals with ways to obtain parameters that describe the speech signal. The third part provides a brief overview of previous case studies and patents focused on the detection of alcohol in the speech signal. The fourth part presents the collected own database of voice recordings and developed software application for the analysis of intoxicated speech. The final part describes the measured changes in speech signal parameters that indicate alcohol intoxication.
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Adaptive control of magnetorheological dampers
Míša, Jiří ; Porteš, Petr (referee) ; Zháňal, Lubor (advisor)
The topic of this master´s thesis is the design of adaptive damping algorithm for the prototype magnetorheological dampers, which are used for Formula Student vehicle. The prime output is the development and optimization of the control algorithm which included usage of the MBS software and real data from race track. Temperature compensation to supress the effect of dynamic viscosity of magnetorheological fluid due to the increase in operating temperature and testing of the vertical dynamic of the car on 4 - post test rig was realized as well. The main goal was to obtain better control of the car in transient situations and increase usability of tires via changes in damping based on actual conditions and status of the vehicle.
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Analysis of overhead throw in baseball
Zelený, Michal ; Süss, Vladimír (advisor) ; Carboch, Jan (referee)
Title: Analysis of overhead throw in baseball Objectives: to describe the work of muscles musculus trapezius dexter, sinister and musculus pectoralis major dexter, sinister during the classic side overhead throw, the throw without using left arm, the front throw, the pitch from the floor and the pitch from the pitching hill using the surface electromyography; to compare all types of the throws and to determine the differences between them Methods: surface elektromyography, video content analysis Results: based on the results of the analysis we can say, that the activity of the chosen muscles during the various types of throws differs in intensity and in the duration of action potencial as well Keywords: baseball, surface elktromyography, overhead throw, throw without using left hand, front throw, pitch
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