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Radar Signal Diffusion Simulator
Ormoš, Michal ; Zemčík, Pavel (referee) ; Maršík, Lukáš (advisor)
Aim of this paper as the title suggest is creating radar simulator, which is capable of build up whole process of capturing broadcasting signal. From radar broadcasting, through his simple rebound from object up to capturing the returning signal back to radar. All this in virtual environment.The problem was solved in Matlab programming environment, in a manner of simulation of three dimensional area, which contains arbitrarily moving points. The points represent radar and object on which is radar aiming. Within the environment we are calculating, obtaining and processing all necessary data. From distance, angles to calculations of frequency and power of returning signal.The result of this work is full-valued simulated environment, which demonstrate whole process of capturing moving object by radar to display it in spectogram, which contains information about object passing the radar. Output is raw signal responded to Doppler shift, emerging in simulated environment. Simulator serve for creating the early concept.
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Speed Measurement Using Radar
Martinů, Lukáš ; Široký, Vít (referee) ; Maršík, Lukáš (advisor)
Bachelor's thesis is focused on method of object's speed detection using a low-cost continuous wave radar module. In the first section, it describes differences between basic types of radar modules and their fundamental principles. The main part of thesis is dedicated to signal processing of radar modules K-MC1, K-MC4, that contents data to analyze moving objects. Doppler effect is used to determine the object's relative speed. Moreover, there is used FSK technique to measure the distance and there are solved issues associated with cosine factor. To verify the performance and stability, the application is tested on a several appropriate objects. In the end, the implemented application is evaluated and the possible continuation of this work is stated.
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Radar Signal Processor in FPGA
Přívara, Jan ; Musil, Petr (referee) ; Maršík, Lukáš (advisor)
This work describes design and implementation of radar processor in FPGA. The theoretical part is focused on Doppler radar, principles of radar signal processing methods and target platform Xilinx Zynq. The next part describes design of radar processor including its individual components and the solution is implemented. FPGA components are written in VHDL language. In the end, the implementation is evaluated and possible continuation of this work is stated.
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Analysis of AVG signals
Janeček, David ; Balogh, Jaroslav (referee) ; Rozman, Jiří (advisor)
This semestral project deals with analytical arteriovelocitogram (AVG). In the first part I a question of collection data AVG curve. Doppler effect and principal of Doppler‘s systems whose assistance data gain is analyzed in this semestral project. In the next part I focus on methods of analytic signals AVG. This means discribing the curve, calculating coefficients or methods for correct evaluation of the signal. These analyzes should categorize the measured data into groups according to pathological changes, of which doctors will determine the next course of treatment. The final chapter deals with the method of cluster analysis to classify data measured by Doppler systems. I deal with the algorithm method and choose the best clustering procedure. In the following section I concern with the practical part. I describe the data which were provided, the program selected for the analysis and the description of the alghoritm. The last chapter describes the results I’ve obtained.
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Range Measurement Using Radar
Sekera, Tomáš ; Herout, Adam (referee) ; Maršík, Lukáš (advisor)
This bachelor thesis is focused on range measurement with a frequency modulated continuous wave radar. First of all, radar signal processing will be presented. Furthermore, will be described a suitably choosen methods and their principles. In the end, a choosen methods will be tested on measured data and subsequently their evaluation is performed.
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Doppler blood flow indicator
Böhm, Richard ; Bubník, Karel (referee) ; Rozman, Jiří (advisor)
This bachelor‘s thesis deals with literature search of basis of ultrasonic and Doppler methods of measuring blood flow velocity. It also deals with the evaluation of Doppler signals and with the individual functional system blocks, with the indicator of blood flow with the operating frequency of 4 MHz, with the generated ultrasonic intensity of 100 mW/cm2 and with the average transmitting changer in shape of D = 8 mm. Furthermore, experimental verification of individual system components is included.
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Ultrasonic blood flow meter
Pavlík, Dušan ; Čížek, Martin (referee) ; Rozman, Jiří (advisor)
This thesis deals with ultrasound blood flow meter design with emphasis on practical implementation of such device. This medical device is used in ultrasound diagnostic, especially for measuring direction and velocity of blood flow in superficial vessels. This thesis contains consecutive design including description of individual function blocks. Documents for making double-sided printed circuit are included as well.
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Ultrasound blood flow detector
Vožda, Michal ; Dlouhý, Jiří (referee) ; Rozman, Jiří (advisor)
This work deals with Doppler methods of measuring blood flow in blood vessels and a simple design with a continuous wave for the 4 MHz frequency and intensity of ultrasound 100 mW/cm2. The work contains a description of the functional blocks and design of their involvement. Individual blocks are simulated in PSpice. The resulting circuit is a printed circuit board and a 3D model of the plate fitted in EAGLE.
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Ultrasound blood flowmeter for haemodialysis monitor
Krohová, Lucie ; Sekora, Jiří (referee) ; Rozman, Jiří (advisor)
The main objective of this thesis is to get know about introduce the principles of hemodialysis, blood flow measurement methods and the creation the system and peripheral design of blood flow meter. The thesis contains an introduction to hemodialysis, a description of the dialysis monitor, the distribution of ultrasonic flow meters and system design of blood flow meter with a brief description of each function block, circuit diagram of a flow meter and experimental verification of the circuit. There are also the list of components, printed circuit board drawing and technical drawing of the sensor included.
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Radar-Based Measurement for Speed Disciplines
Piňos, Michal ; Široký, Adam (referee) ; Maršík, Lukáš (advisor)
The aim of this bachelor thesis is radar-based measurement for speed disciplines. For this purpose, the Doppler radar with continuous wave was used, K-MC4 to be specific. Standard signal processing techniques were used to extract the speed information from the radar signal. The key method for obtaining Doppler frequency from signal is Fourier transform. Cosine effect is compensated based on the computed angle.The result of this work is a detector capable of measuring speed and direction of measured objects. Implemented solution also allows the detection of certain objects.
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