Сучасні проблеми радіоелектроніки, телекомунікацій, комп'ютерної інженерії
Permanent URI for this communityhttps://ena.lpnu.ua/handle/ntb/13803
Browse
Item Optimization of microwave device(Видавництво Львівської політехніки, 2010) Naumets, MykolaThere have been considered the elements of the technique of optimizing the process of the passive microwave development and design and its results.Item Lazer power supply based on multiphase resonance converters(Видавництво Львівської політехніки, 2010) Kazanivsky, MikhailoThe laser power supply construction structure has been proposed on the base of multiphase resonance converterItem The theoretical basis of bisignal formation of information flow in computer systems with open optical signals(Видавництво Львівської політехніки, 2010) Grynchyshyn, Taras; Yakymenko, Ihor; Nykolajchuk, Yaroslav; Kasyanchuk, MykhajloThe theoretical basis of bisignal formation of information flow in computer systems (CS) with open optical signal (OOS) was proclaimed. Analytic expressions of signals attenuation in computer systems OOS with compensated multiplicative noise were determined.Item Modeling of threshold voltage in three-dimensional SOI-structures(Видавництво Львівської політехніки, 2010) Kogut, І. Т.; Scherbyak, V. М.This paper proposed an original approach to the analysis of the threshold voltage metal-oxidesemiconductor structures based on local three-dimensional SOI-structures.Item The methodology of modeling available for data traffic bandwidth telecommunications network(Видавництво Львівської політехніки, 2010) Polschykov, Kostiantyn; Strjuk, Olexij; Rvachova, NataliaIn this paper, the statement and solution of the important scientific problem of development the methodology of creation of adequate models simulating the timely changes of network throughput amount, available for the data traffic transmission are considered.Item Messages analysis plan formation by the information network operator(Видавництво Львівської політехніки, 2010) Subach, Igor; Saenko, Olexanderthe methodology of message analysis plan formation by the information network operator about the parameters of its functioning and state is examined in this article.Item Monitoring mobile network of control functional state of sportsmen(Видавництво Львівської політехніки, 2010) Boyko, V.; Nel'ga, А.; Reyderman, Y.The personal mobile network is offered for monitoring of power indexes of organism of sportsmen – rowers and estimation them the functional state during a training process.Item About expediency of use of the reemission of photons for increasing light intensity of multilayer LEDs that can be exposed to radiation(Видавництво Львівської політехніки, 2010) Irkha, Vasily; Gorbachev, VictorOn the basis of the obtained experimental regular dependences the probable causes of the degradation of emission of multilayer GaAlAs-LEDs after gamma irradiation are considered.Item Progress in the analysis of the electrical generator of the heart(Видавництво Львівської політехніки, 2010) Chaikovsky, Illya; Budnyk, Mykola; Najafian, Mokhammad; Martynenko, Serhiy; Dovbysh, Anatoly; Budnyk, Vitaly; Kovalenko, OleksandrAim of study is to develop understanding of the heart electric generator based on classification of current density distribution (CDD) maps with help of information-extreme intellectual technology (IEIT). Errorfree decision rules were obtained in learning population. Decision rule for test Healthy–CAD was examined based on 203 healthy volunteers and 256 CAD pts and sensitivity and specificity equal to 93% and 87 %, respectively, have been achieved.Item Features of use wavelet transforms for processing and analysis of rail fault detection signals(Видавництво Львівської політехніки, 2010) Nichoga, Vіtaliy; Pavlysh, Volodymyr; Romanyshyn, YuriyIn this paper the features of use continuous and discrete wavelet transforms for processing and analysis of experimental signals of rail fault detection are considered.Item Estimation method of speed potential Adsl2+ connections for grant of triple play service(Видавництво Львівської політехніки, 2010) Krikun, Vladimir; Brindziy, AleksanderThis paper considers the throughput of ADSL2+ (Asymmetric Digital Subscriber Line) modems, used for high speed data transmission. Digital subscriber line must agree minimum rate performance recommendations for delivery triple play applications through a broadband infrastructure. Estimation method of speed potential ADSL2+ connections is examined in this paper.Item The Change-point detection in rhythmocardiosignal by Neyman-Pearson criterion(Видавництво Львівської політехніки, 2010) Leschyshyn, Yury; Semchyshyn, Olexander; Dozorskyy, VasylRhythmocardiosignal (RCS) as the periodically correlated stochastic sequence is presented. Neyman-Pearson criterion was applied for the changepoint detection in RCS.Item The location of transcoders in multiservice networks(Видавництво Львівської політехніки, 2010) Shevchuk, RuslanIn this work researches the location of transcoders in multiservice networks. The analysis of structures of location transcoders allowed to select and compare the main features. The analysis showed that the bottleneck of centralized schemes is the server, and distributed - the performance of terminals.Item The analysis of the characteristics of routing protocols in IP networks(Видавництво Львівської політехніки, 2010) Bezruk, Valery; Varich, VyacheslavConsidered the most common routing protocols with different types of delivery (unicast, multicast) as well as technology and ways of organizing Multipath routing. At this stage, made a comparative analysis of protocols unicast (RIP, OSPF and AntNet) and multicast (DVMRP, MOSPF, PIM-DM, CBT and PIM-SM) routing and provide recommendations on their practical application.Item Multilevel image thresholding based on histograms` peaks clustering(Видавництво Львівської політехніки, 2010) Kosarevych, Rostyslav; Kobasyar, Mykhaylo; Korniy, Valentyna; Rusyn, BohdanThis paper presents an algorithm for finding thresholds by clustering data formed thru detection in different size image parts histogram peaks.Item Programming model to determine the effect of input parameters variations on the network characteristics(Видавництво Львівської політехніки, 2010) Sakharova, SvetlanaThis work is devoted to the development of software models to estimate the sensitivity characteristics of the network on the variations of input parameters.Item CPLD-based system for the quadrature digital upconverter(Видавництво Львівської політехніки, 2010) Vdovychenko, Yegor I.In this paper CPLD-based realization of a radio technical system meant for the quadrature digital up converter control being used in the communication systems of special purpose.Item Rail-to-rail signal transducers for USB sensor devices(Видавництво Львівської політехніки, 2010) Нotra, Z. Yu.; Holyaka, R. L.; Gelzynskyy, I. I.; Marusenkova, T. A.; Levenets, V. V.Design principles and microelectronic parts of sensor devices signal transducers (including thermomagneto-, photo- measuring converters) meeting requirements of up-to-date low-voltage energy-efficient apparatus driven and fed through USB port are considered. It is shown that such sensors in order to providing high technical characteristics have to have possibility of highprecision functional transductions at low-voltage unipolar supply source (5 V or less), consume small power (tens of mW or less) and be compatible with USB interface.Item The model of the MEMS disk bandpass filter operating in radial mode(Видавництво Львівської політехніки, 2010) Yakymenko, Yuriy; Pilinsky, Volodymyr; Petrishev, Оleg; Yanovska, Yuliy; Bogdan, Oleksandr; Zelenskyy, SergiyIn this paper main characteristics of a piezoceramic bandwidth filter that is used radial oscillations for its work calculation method is proposed. Also there are considered influence of next parameters: distance to second electrode, first electrode width and electric load value. MEMS bandwidth filter designing are given.Item Correcting of non-uniformity of brightness of the image in a scanning microscope(Видавництво Львівської політехніки, 2010) Balanjuk, Yurij; Goj, Vitaliy; Turkinov, Gennadiy; Shkliarskyi, VolodymyrThe reasons of occurrence of non-uniformity of brightness of formation of the image of researched microobject in the scanning television optical channel are analyzed. Ways of removal of components of nonuniformity of a signal are specified.