Сучасні проблеми радіоелектроніки, телекомунікацій, комп'ютерної інженерії (TCSET’2012). – 2012 р.

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/13804

У книзі зібрано матеріали конференції, присвяченої науково-технічним проблемам у галузі радіоелектроніки,телекомунікацій та комп’ютерної інженерії. Видання призначене для науковців, інженерів та аспірантів.

Сучасні проблеми радіоелектроніки, телекомунікацій, комп'ютерної інженерії : матеріали XІ Міжнародної конференції TCSET'2012, присвяченої 60-річчю заснування радіотехнічного факультету у Львівській політехніці, 21-24 лютого 2012 року, Львів, Славське, Україна / Міністерство освіти і науки, молоді та спорту України, Національний університет "Львівська політехніка". – Львів : Видавництво Львівської політехніки, 2012. – 552 с.

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Radar sensor in MM wave band for farm tractors
(Видавництво Львівської політехніки, 2012) Maltsev, V. P.; Khlopov, G. I.
The development of the sensor on the base of coherent radar for measuring of absolute velocity of farm tractors is discussed. The structural scheme, components design and data of the full-scale test are also presented as well as the recommendations concerning use of the sensor.
Frequency-compensated piezoresonance oscillator system with external MEMS control
(Видавництво Львівської політехніки, 2012) Taranchuk, A. A.; Pidchenko, S. K.; Mishan, V. V.
The paper represents piezoresonance oscillator system with external control based on MEMS – capacitor, which provides frequency compensation of low quality loading influence on high quality quartz resonator due to setting optimal electrical connection between them.
Features of execution of the converter pressure in scanning a television optical microscope
(Видавництво Львівської політехніки, 2012) Vasiliuk, Vladimir; Dorozhivska, Marta; Liubinetska, Bogdana; Shkliarskiy, Volodimir
Ways of design of precision voltage-current converters (VCC) are proposed. VCCs are used for formation of currents in deflection coils with high accuracy and stability. Currents form scanning raster on high resolution ELT screen.
Peculiarities of construction of electromechanical converters’ macromodels with the use of optimization process
(Видавництво Львівської політехніки, 2012) Stakhiv, Petro; Kozak, Yuriy; Vasylchyshyn, Ivanna
In this paper the new approach to the simplification of optimization problem of macromodels construction is suggested. The approach is based on a slight deviation from the black box principle and taking into consideration physics processes that occur in the object of modeling.
Parameterization method for logarithmic image processing model
(Видавництво Львівської політехніки, 2012) Vorobel, Roman; Botsian, Volodymyr
In this paper a new parameterization method for logarithmic image processing (LIP) model is presented. This method is based on nonlinear transformation with using bijection. The use of this method provide means for construction of different logarithmic type algebras for image processing.
The software complex development for modeling and optimizing of processes of radio-engineering equipment quality ensure at the stage of manufacture
(Видавництво Львівської політехніки, 2012) Bondariev, Andriy; Kiselychnyk, Myroslav; Nadobko, Oleg; Nedostup, Leonid; Chyrun, Lyubomyr; Shestakevych, Tetyana
The results of software complex development for modeling and optimizing of processes of radio-engineering equipment quality providing at the stage of manufacture are presented.
Monopulse-frequency temporal processing of unknown signals based on LFM - fourier transform in passive systems radiomonitoring
(Видавництво Львівської політехніки, 2012) Antonyuk, Volodymyr; Kalyuzhniy, Mykola; Prudyus, Ivan; Nichoha, Vitalij
Principles of combination of dispersive-time and digital signal processing methods in problems of identification, evaluation parameters, recognition and identification of complex signals and means that they emit.
Server virtualization management of corporate network with hyper-v
(Видавництво Львівської політехніки, 2012) Kovalenko, Taras
On a paper main tasks and problems of server virtualization are considerate. Practical value of virtualization in a corporate network, advantages and disadvantages of application of server virtualization are also considerate.
Identification with privacy protection based on data hiding
(Видавництво Львівської політехніки, 2012) Holotyak, Taras; Voloshynovskiy, Svyatoslav; Prudyus, Ivan
In many problems such as biometrics, multimedia search and retrieval, recommendation systems requiring privacy preserving similarity computations and identification, some binary features are stored in the public domain or outsourced to the third parties that might raise certain privacy concerns about the original data. To avoid this privacy leak, privacy protection is used. In the most cases, the privacy protection is uniformly applied to all binary features resulting in the data degradation and corresponding loss of performance. To avoid this undesirable effect we propose a new privacy amplification technique that is based on data hiding principles and benefits from side information about bit reliability a.k.a. soft fingerprinting. In this paper, we investigate the identification rate vs. privacy-leak trade off. The analysis is performed for the case of perfect match between the side information shared between the encoder and decoder as well as for the case of partial side information.
Si wires for strain sensor application
(Видавництво Львівської політехніки, 2012) Druzhinin, Anatoly; Ostrovskii, Igor; Palewski, Tomasz; Nichkalo, Stepan; Koretskyy, Roman; Berezhanskii, Yevgen
Resistance and magnetoresistance of Si microwires were studied in temperature range 4,2-300 K at magnetic fields up to 14 T. Ga-In gates were created to wires and ohmic I-U characteristics were observed in all temperature range. It was found high elastic strain for Si wires, linear thermoresistive characteristics as well as small magnitude of magnetoresistance (of about 5% at 14 T), which was used to design multifunctional sensor of simultaneous measurements of strain and temperature with minimal sensitivity to magnetic field intensity.
Results of the dynamic flow-based queue balancing model research
(Видавництво Львівської політехніки, 2012) Lemeshko, Olexandr V.; Ali, Ali S.; Semenyaka, Maxim V.
The paper presents the flow-based model that was designed for solving dynamic queue balancing problem on the telecommunication network routers. Within the proposed model the problem of queue balancing was reduced to solution of the linear programming optimization problem. The research of the queue balancing process was performed by using flow-based model in regard to improve quality of service in multiservice network nodes.
Subgrain edge detection on images of steel 2,25Cr-1Mo using watershed method
(Видавництво Львівської політехніки, 2012) Ivasenko, Iryna; Vorobel, Roman
Method of preliminary image processing based on retinex theory for subgrain edge detection of steel 2,25Cr-1Mo using watershed approach is proposed. Experimental results are presented to demonstrate the effectiveness of proposed approach.
Coagulation properties of incoherent optoelectronic systems
(Видавництво Львівської політехніки, 2012) Furmanov, Yurij; Kozhuhar, Oleхander; Sukhin, Ihor; Savitskaya, Iryna; Bilylovets, Oleхij; Kachan, Sergij; Hryntsiv, Stepan
This article presents the results of the experimental and computational study on the development and using of the optical incoherent thermal radiators as a method to control bleeding in surgery The experimental data facilitated the development of the device for photo optical coagulation. The device was successfully tested on animals.
Application of the ripley’s K-function for image segmentation
(Видавництво Львівської політехніки, 2012) Kosarevych, Rostyslav; Rusyn, Bohdan
In this paper the method of image segmentation by application of point pattern characteristic is shown.
Features of impulse stabilizer output smoothing filter parameters choosing
(Видавництво Львівської політехніки, 2012) Vojetsa, Olexandr; Semenystiy, Kostyantin; Snitsaruk, Leonid
Voltage ripple factor dependence at the impulse stabilizer output smoothing filter on the voltage mark-to-space ratio, which controls the key element of the stabilizer is investigated. Expressions, which allow to provide rational selection of the smoothing LC-filter elements and size up the amplitude of the ripple voltage at its output are obtained.
Comparative analysis of modeling the fields of harmful emissions from vehicles using deterministic and interval approaches
(Видавництво Львівської політехніки, 2012) Krepych, Svitlana; Dyvak, Mykola; Stakhiv, Petro
The process of diffusion the harmful emissions from vehicles is comfortably describe by differential equation in partial derivatives. However, the measured data for these models have some measurement errors. So it is better to represent the input data in interval kind.
The 2D – 3D – 2D' method for communication system research
(Видавництво Львівської політехніки, 2012) Pelishok, Volodymyr
This paper contains a description of the proposed 2D – 3D – 2D' method, which allows transition from the existing two-dimensional dependences to the ancillary three-dimensional dependences and follows to the required two-dimensional dependences. It helps to simplify the research.
Efficiency increase of information services in 3G and 4G networks, using MIMO-systems
(Видавництво Львівської політехніки, 2012) Yaremko, Oleg
The basic idea of a CDMA system to overcome the multipath problem is built on the fact that a spread spectrum signal has a much wider bandwidth occupancy than its original baseband signal, such that the spread spectrum signal will offer a unique property that multipath diversity can be made possible due to its excellent time resolution derived from its very wide bandwidth signaling. A RAKE receiver can be used to resolve different multipath returns individually and combine them again in a coherent or non-coherent way, to achieve the multipath diversity capability, which has become one of the most important technical features that make CDMA a very attractive multiple access technology for 2G and 3G wireless communications.
The approaches to reduction power consumption in integrated circuits
(Видавництво Львівської політехніки, 2012) Parnevich, P. V.; Bykov, S. O.; Mosin, S. G.
During the development of information society and technology portable hand-held electronic devices are increasingly enter in everyday life. Trends toward continuous growth of these devices complexity and, therefore, increase the need for providing them with enough energy are obvious. The approaches to reduce power consumption in integrated circuits are studied in the paper.
Software and hardware to control a car model based on dSPACE controller
(Видавництво Львівської політехніки, 2012) Gumeniuk, P. O.; Tokarchuk, V. V.; Lysenko, R. I.
This paper describes an algorithm for a vehicle model avoiding obstacles. Also hardware was designed to test the algorithm and model’s performance was coordinated with singlecrystal high-performance controller dSPACE DS1104.