Department of Design and Production of Radio Electronic Equipment

National Technical University of Ukraine
"Igor Sikorsky Kyiv Polytechnic Institute"

Analysis of electromagnetic fields diffuser with fractal geometry indoors

Author: Tkach Leonid

Group: РВ-31м

Supervisor: Zinchenko Maxim

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Master dissertation devoted to issues considering the level of radiation of electromagnetic fields on diffusers with fractal geometry. Explanatory note occupies a volume of 128 p., Includes 45 figures, 18 tables, 144 formulas and 44 sources. It consists of an introduction, list of references, five chapters, conclusions, list of references and applications. In the master’s dissertation printed circuits and devices considered as diffusers of fractal geometry. A model сonductors PCB antenna structure as random stochastic fractal dendritic type. Made by modeling electrodynamic systems devices approximation of thin conductors and flat screens that take into account the calculation of the surface current induced excitation leading to cell model. As a mathematical basis is the method of integral equations written on the surface current density in conductors and conductive thin screens. The investigation of fractal antennas range from 2 to 18 GHz, which show that their work area frequency bandwidth is interleaved and relaxation. Bandwidth increases with increasing operating frequency of the antenna. In bandwidth excited some local areas active surface fractal antenna. The size and location of these areas depend on the frequency of the probe signal. Fractal antenna in certain frequency bands can provide enough high gain. Experimentally confirmed that the circuit boards in evaluating their EMC can be considered as fractal fertilizer.

Keywords: electromagnetic compatibility, the level of radiation of electromagnetic fields, statistical and deterministic approach

The work consists of:  116 pages of explanatory note and 1 appendix

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Program to improve the quality of services e-commerce using mobile devices

Author: Tarashscuk Hryhorii

Group: РВ-31м

Supervisor: Levandovskii Vitalii

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Master dissertation: 128 p., 12 fig., 2 tab., 1 applications, 30 sources. Object of research — a multimedia smartphone IPhone. Subject of research — methods of programming in Xcode. Purpose of work — to reduce the number of returns in the online purchases through mobile devices. Development of the program will provide new opportunities for users mobile operating system. This program provides significant advantages over existing analogues.

Keywords: programs, iphone, xcode

The work consists of:  135 pages of explanatory note and 0 appendix

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Analysis and synthesis ukrainian speech

Author: Minnigalimov Ruslan

Group: РВ-31м

Supervisor: Tarabarov Sergii

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Urgency. Ukrainian is the state language and mother tongue of our people. One of the important components of language is intonation. It conveys the meaning of speech, expresses the attitude of the speaker to what is said, and provides emotional expression values play an important role in speech and at the same time is less explored. Research conducted intonation philologists, linguists. They describe its characteristics and types, such as ascending or descending intonation, but from a technical point of view, these descriptions are no specifics, so it is important to study the characteristics of the speech signal tone and their descriptions to provide measurement capabilities. The purpose and objectives of research. The aim of this work is to study the characteristics of the speech signal tone, methods of analysis of these characteristics and their description of this method to provide design values with which you can be granted a more accurate description of intonation. Object is Ukrainian intonation of speech that is written in the speech signal. The subject of the study is the frequency of the fundamental tone of the speech signal, spectrogram and its intensity. Methods. We study the characteristics of the speech signal, frequency spectrogram basic tone and speech signals. Study occur when changing the tone, its types: smooth, interrogative and such that speech gives a negative value. Its parameters: frequency of basic tone, spectrogram, intensity. Scientific novelty of the results of the master’s thesis is as follows: 1. The dependence of the fundamental tone frequency, intensity and spectrogram signal related to the Ukrainian intonation of speech. 2. Made mathematical calculation frequency change basic tone signal. The practical significance. Mathematical calculation frequency change basic tone will more accurately describe the speech signals when examined intonation to help better understand the dependence of the frequency of the fundamental tone of tone and intonation better establish links with such characteristics as spectrogram and signal intensity. The structure of the thesis. The thesis consists of an introduction, three chapters, the last of which includes conclusions on the study, list of sources. The total volume of 90 pages.

Keywords: speech analysis, speech synthesis, mathematical model

The work consists of:  107 pages of explanatory note and 3 appendix

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Investigation of service parameters of terrestrial and airborne receivers GPS

Author: Maksimenko Yarslav

Group: РВ-31м

Supervisor: Pryshchepa M. M.

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Master dissertation: 93 p, 13 fig., 23 tab., 20 sources. Subject:” Investigation of service parameters of terrestrial and airborne receivers GPS”. Research object: pseudorange model to the satellites GPS. Simulated and studied model pseudorange satellites; pseudorange measurement methods; factors affecting the error vimyru psevdodalnosti. The technique of pseudo-range measurements; pseudo formats in the navigation receiver; Decoding measurement information. And performs decoding processing receiver data in the time interval 8000 seconds. MatLab program for determining visibility of satellites, decode processing of the experimental data and the results of measurements.The methods for the management of safety in air navigation system, the introduction of a satellite navigation system.

Keywords: pseudo-range, satellites, gps, orbit, modeling, interpolation, decoding, influence factors, research, message structure.

The work consists of:  93 pages of explanatory note and 1 appendix

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Adaptive surge protector to protect information in the means of computer technology

Author: Ishscenko Kostiantyn

Group: РВ-31м

Supervisor: Yevhrafov Dmytro

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: In this master’s thesis was a study of information leakage in the line supply side due to electromagnetic radiation of the scheme canal network adaptive filter. Was developed electrical schematic diagram of an adaptive network filter. This active power filter creates a high resistance, serial line harmonic current. With high power of the source, passive filter absorbs harmonic currents generated by nonlinear load. This filter can be used in any area where there is a problem in side electromagnetic radiation. Master’s thesis made and designed in the form of an explanatory note, which includes 100 pages and presentation that includes 5 figures

Keywords: the leak, electromagnetic radiation surge protector

The work consists of:  86 pages of explanatory note and 1 appendix

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Methods of processing signals in nonlinear radar review

Author: Hatashov Olexandr

Group: РВ31м

Supervisor: Professor Zinkovskyi Yuri

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Volume master’s thesis is 106 pages, which includes 33 illustrations, 6 tables, 28 bibliographic titles for references. Relevant issues considered secondary signal processing response of nonlinear radar. The purpose of the study was floated on the probing signal spectrum of the signal response of a nonlinear lens radilokatsiyi. The existing design nonlinear radilokatoriv, a table with comparisons of their characteristics. The analysis of the secondary field of nonlinear radar, it was shown how its characteristics vary depending on the type of irradiated nonlinearity.

Keywords: nonlinear radar, secondary signal response microstrip line rozsivachi nonlinear, parametric fertilizer

The work consists of:  108 pages of explanatory note and 1 appendix

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A device for transmitting telemetry data to the remote object

Author: Buriachynskyi Maksym

Group: РВ-31м

Supervisor: Levandovskyi Vitalii

ELK: Bachelor

Speciality: 8.05090201 Radioelectronic Devices

Summary: Magister’s dissertation is devoted to developing devices for the transmission of telemetry data from the remote object on the computer. A device for transmitting telemetry data can be used in various industries, the remote observation of the process in difficult access areas where cable is not economically profitable, or when you want maximum speed the deployment of telemetric network (eg, emergencies). The use of wireless data transmission provides a fast, reliable and high-quality connection between the sensors and processing center, and provide to respond to unpredictable situations in real time. However, the autonomy system and the compact dimensions allow you to quickly install the device on moving objects, and in remote areas, making the device indispensable to many industries, as well as emergency situations. Diploma thesis is designed as an explanatory note containing 69 sheets, and graphic part – 3 sheets of A4.

Keywords: radio modem, cd, wireless transmission

The work consists of:  64 pages of explanatory note and 3 appendix

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Research based on nonlinear lens plane spiral antenna

Author: Galitskiy Alexander Pavlovich

Group: РВ-31м

Supervisor: Zinchenko Maxim Vyacheslavovich

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Volume explanatory note is 129 pages, which includes 55 illustrations, 8 tables, 3 annexes and 52 bibliographical name on the list of references. Considered relevant issues of telecommunication systems, rational use of spiral antennas resolved many practical tasks for-that will determine the quality and quantity of radio systems is developed. The purpose of the study of nonlinear lens on the basis of flat spiral antennas: modeling and analysis of the characteristics, advantages and disadvantages definition devices. The analysis of characteristics, radiation spiral flax antenna, calculating the components of the electromagnetic field simulation broadband lens among MMana, MathCad received: The diagram of the nonlinear fertilizer; Energy characteristics of components in the signal response is nonlinear scattering th; Got the possibility of using nonlinear lens as physical models of embedded devices.

Keywords: chart orientation, nonlinear radar, nonlinear lens, the signal response spiral antenna radiation

The work consists of:  129 pages of explanatory note and 3 appendix

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Nonlinear lens detection method for the secondary radiation

Author: Balitskyi Vitalii

Group: РВ-31м

Supervisor: Zinkovskyi Yuri Frantsovych

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: The work is to identify the tell-tale signs of secondary semiconductor LDCs in order to increase efficiency of nonlinear radar to search for eavesdropping devices in the field of technical protection of information. The study involved secondary analysis of tell-tale signs of internal effects in semiconductor structures LDCs during the relatively strong nonlinear probing signal radar. The aim of the thesis is to study the response of a nonlinear lens structure to ensuring the effective identification of the latter. Implementation of the operation in practice of technical protection of information has practical and scientific value and increases the efficiency of the installation, identification and localization of eavesdropping devices means nonlinear radar. Based on materials dissertation published 1 scientific work on “Over-securing remote detection of objects in nonlinear radar”. Master’s thesis consists of an introduction, three chapters, conclusion and bibliography. The work contains 120 pages, 27 figures and 7 tables. References includes 45 titles.

Keywords: nonlinear radar, nonlinear lens, the signal response, secondary radiation protection information zakladniy device, tell-tale sign of noise.

The work consists of:  130 pages of explanatory note and 1 appendix

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The system concentration of electromagnetic fields from microwave n sources in one volume

Author: Slobodenyuk Andrii

Group: РВ-31м

Supervisor: Sydoruk Yurii

ELK: Master

Speciality: 8.05090201 Radioelectronic Devices and Facilities

Summary: Volume explanatory note is 142 pages, which includes 59 illustrations, 4 tables, 1 addition and 51 names on the list of bibliographic references. Examined topical questions of development and designing of system concentration of electromagnetic fields microwave for drying bulk materials. Purpose of the work consisted in design and research of concentration of electromagnetic microwave field. Existing devices for drying bulk materials, lighting their main weaknesses. Researched possible construction of concentration of electromagnetic fields. As a result of theoretical analysis polarizing filters, tanning theoretical analysis of structures, calculation of field distribution, calculation of field in the area of energy concentration electric field of microwave range developed a simplified system concentration of energy from reflector.

Keywords: extremely high frequency, dryers, bulk materials, microwave device, waveguide antenna, reflector antennas.

The work consists of:  142 pages of explanatory note and 1 appendix

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