All articles - Telecommunications

Ushbu maqolada IT-soha hayotimizda qanchalik kerak ekanligi xususida qisqacha yoritilgan. Bugungi kunda jahonda va mamlakatimizda IT-sohaga kata e’tibor qaratilmoqda. Ushbu soha vakillariga esa talab borgan sari ortib bormoqda. Mamlakatimizda bu sohaning asl mutaxassislari ko’p emas. Shuning uchun hukumatimiz o‘z e’tiborini bu sohani rivojlantirishga, yoshlarni bu sohaga jalb etishga qaratgan. Poytaxtimiz markazida qad ko‘targan va foydalanishga topshirilgan IT-parki ham bu soha mamlakatimizga qanchalik kerakligini ko‘rsatadi.

Ҳозирда ахборот-коммуникатив жараён жадал суратларда тезлашиб, коммуникация воситалари такомиллашиб бормоқда. Ҳар бир алоқа воситасининг ахборот етказиб беришда ўз услуби ва имкониятлари мавжуд. Оммавий алоқа воситаси телевидение техника ёрдамида вербал ва визуал коммуникация унсурларидан фойдаланиб ахборотни кўп сонли аудиторияга узатади. Коммуникант (томошабин) ва коммуникатор (телевидение, яъни мазкур манба орқали маълумотларни узатиш истагида бўлган соҳа вакиллари) ўртасида коммуникатив алоқа ўрнатилади. Коммуникант ахборотни визуал ҳамда вербал коммуникация орқали қабул қилади. Г.Г.Почепцов коммуникацияга “вербал ахборотни новербалга ва аксинча новербални вербалга қайта кодлаштириш жараёни” [Почепцов, Г.Г. 2001: с.14.] деб таъриф берган. Телевидениенинг ижод аҳлиэса вербал ва новербал воситалар ила ахборотни визуаллаштирад и. В а уста мусаввир ўз асарида турли рангларни чаплаштириб ташламаганидек, адиб, кино ва телевидение аҳли ҳам сўзларни талабчанлик билан танлаши лозим. Телевидение қаламга олинадиган сўзни ҳам, талаффуз этиладиган сўзни ҳам инкор этмайди. Бу қудратли восита тасвир яратишга, тасвирни тўлдиришга, томошабин - тингловчи билан алоқа ўрнатишга, мавзунинг концепциясини очишга хизмат қилиши назарда тутилади.

Мамлакатда амалга оширилаётган демократик жараёнларнинг сифати ва самарасини ҳамда инсоннинг ҳуқуқлари, эркинликлари ва манфаатларини химоя қилиш мақсадида одамлар ҳаётининг муносиб даражасини таъминлаш учуй давлат органларининг роли ва масъулиятини кучайтириш, аҳоли билан очиқ мулоқотни ташкил этиш ва уларнинг мурожаатлари билан ишлашнинг янги самарали механизмлари ва усулларини ишлаб чиқиш, фуқароларнинг ижтимоий муаммоларини ўз вақтида ҳал этиш бўйича чора тадбирлар ишлаб чиқилмоқда ҳамда ижросини таъминлашга ҳаракат қилинмоқда

Ҳозирда ахборот-коммуникатив жараён жадал суратларда тезлашиб, коммуникация воситалари такомиллашиб бормоқда. Ҳар бир алоқа воситасининг ахборот етказиб беришда ўз услуби ва имкониятлари мавжуд. Оммавий алоқа воситаси телевидение техника ёрдамида вербал ва визуал коммуникация унсурларидан фойдаланиб ахборотни кўп сонли аудиторияга узатади. Коммуникант (томошабин) ва коммуникатор (телевидение, яъни мазкур манба орқали маълумотларни узатиш истагида бўлган соҳа вакиллари) ўртасида коммуникатив алоқа ўрнатилади. Коммуникант ахборотни визуал ҳамда вербал коммуникация орқали қабул қилади. Г.Г.Почепцов коммуникацияга “вербал ахборотни новербалга ва аксинча новербални вербалга қайта кодлаштириш жараёни” [Почепцов, Г.Г.2001: с.14.] деб таъриф берган.

Произведен анализ известных способов формирования каналов утечки информации и физические методы защиты информации, передаваемой по волоконно-оптических линиях связи. Предложены способы повышения защищенности оптического волокна при передаче данных, а также предложена и описана модель системы защиты информации в волоконно-оптической линии на основе устройства рефлектометра.

Для криптообработки информации с использованием шифрования Вернам разработан рабочий симулятор логического элемента XOR, основанный на тех же принципах, что и магнитооптические логические элементы. Проведена экспериментальная проверка устройства-имитатора с использованием кодирования ASCII и разработан алгоритм шифрования и дешифрования текстовой информации.

Maqolada axborotlashgan jamiyatda sun’iy intellektning muvaffaqiyati natijasida yuzaga keladigan jarayonlar, jumladan, mehnat, aqlli mashinalarning inson mehnatini yengillashtirish bilan birga, insonning o‘z-o‘ziga bo‘lgan munosabatini qaytadan ko‘rib chiqish, mehnatning intellektuallashuvining ishlab chiqarish sifati va samaradorligiga ta’siri, axborotlashgan jamiyat muammolari ijtimoiy-falsafiy aspektda ochib berilgan.

Ushbu maqolada biz dinamik muhitda ishlaydigan mobil robotlar uchun yo'lni optimal rejalashtirishga erishish uchun sun'iy neyron tarmoqlarni (ANN) yo'lni rejalashtirish texnikasi bilan birlashtirgan algoritmik asosni taklif qilamiz. Asosiy maqsad - to'siqlar va turli xil atrof-muhit sharoitlarini hisobga olgan holda, robotlarni dinamik bo'shliqlar bo'ylab samarali boshqarish. Matlab dasturining ROS uskunalar panelida simulyatsiyalar va real tajribalar orqali yondashuvimizning samaradorligini ko'rsatamiz. Bizning natijalarimiz samaradorlik va muvaffaqiyat darajasi bo'yicha mavjud yo'lni rejalashtirish algoritmlariga nisbatan ayrim ko‘rsatkichlari yuqori samaradorlikni ko'rsatadi.

Ikki diapazonli optik modulyatsiya va stimulyatsiya qilingan Brillouin tarqalishiga asoslangan optik vektor analizatori, shuningdek, OptiSystem dasturiy muhitida uni simulyatsiya qilish imkoniyati ko'rib chiqiladi.

Tasvirlarga ishlov berishda Fure o‘zgartirishidan foydalanish. Image Processing Toolbox muhitida tasvirlarni filtrlash.

This article is written to describe whether cartoon films can improve students’ pronunciation ability and to what extent cartoon films can improve students’ pronunciation ability. Furthermore, to identify what happens when cartoon films are used as a teaching learning media in pronunciation practice.

Subjects of research: associative switching system structure, associative switching system networks, associative switching and routing, their models and design methods
Purpose of work: research and design of switching node models and designing methods of the broadband multilevel N-dimension associative switching networks.
Methods of research: researches based on algebraic system of associative switching, probability theory, queueing theory, group theory, z-transform methods, matrix algorithms, parametric analysis of time-probabilistic characteristics and network stricture optimization.
The results obtained and their novelty: associative switching fabric model based on group theory with alphabet A and substitution system F; switching task solution in the network modules of the associative switching system is represented as multiplication operation of multiplicative algebraic substitution group of matrix elements in RAM and program memory (function domain of Neighbourhood Single Radius NSR); analytical models of associative switching system of the ring and star structures.
Practical value: Formulas for practical design of associative switching system arc obtained. Formulas allow to choosing associative switching system parameters according specified requirements and initial data. It’s defined associative switching fabric application in switching systems have more higher performance in comparison with traditional switching systems.
Degree of embed and economic cffcctivity: results have been implemented to JSC “Uzbektelecom” and into educational program of Tashkent university of information technologies TU1T.
Field of application: dimension, design, realization of associative routing and switching mechanism for access and transport telecommunication networks.

Subjects of the research: The diagnostics of data transmission systems’ (DTS) elements under operation terms, methods of the control of DTA (data transmission apparatus) and diagnostics of digital devises on the base of signature analysis.
Purpose of work: Investigation and development of effective control methods and diagnostic of data transmission systems’ elements.
.Method of research: On solving of given problems analytical and program methods of investigation have been used, including elaborated models and methodic with following processing and analyses of the received results. Analytical methods were based on probability theory, flow - chart theory, reliability theory, algebra logic theory, machine modeling theory.
The results obtained and their novelty: The cascade model of error source of discreet channel and the strategy of diagnostics and restoring the efficiency of DTS elements. The mathematic model of embedded control over DTS elements with and without self control and evaluation of volumes value and efficiency. Evaluation methodic of sample signatures reliability and calculation. The algorithms of despairs detection at signature analysis application, minimizing the time of search. An imitation model for evaluating the methods of compact testing and sample signatures shaping.
Practical value: The elaborated methodic, algorithms and programs are recommended for practical use at designing of control - diagnostic provision at the stage of operation of data transmission systems.
Degree of embed and economic cffcctivitv: The results of dissertation work have been adopted in AK «Uzbektelecom». The theoretical and practical results have been used at TU1T on «Telecommunications» specialty and 5A522205 - «Communication networks and control systems» specialty.
Field of application: The proposed methodic, algorithms and programs could be widely used at operation of data transmission systems, development of control - diagnostic supply of digital systems and devices of telecommunication equipment.

Subject of research: The object of research is JSC Uzbektelecom, leading operator in telecommunication market.
Purpose of work: to develop practical and scientific-methodological recommendations for further improvement of inovational processes in information and communication field of Uzbekistan.
Methods of research: methods of comparative and logical analysis, systematic approach, scientific abstraction, statistical grouping and economical-statistic method.
The results obtained and their novelty: identified the main features, influences to improve the innovational process in the field of communication and information; on the basis of summarizing the experiences of foreign countries, identified the international tendencies of development the information-communication sphere and their impacts to increase the competitiveness of national economy; identified the features of formation and regularity of development the informational processes in the field of communication and informatization, systematized influences to their factors; recommended the measures for developing the infrastructure of innovational improvement in the field of communication and informatization and mechanisms of their administration; substantiated the recommendations to develop the innovational entrepreneurship, as a potential effective and flexible forms on introduction new information technologies; developed the recommendations on priority directions the innovational improvement JSC “Uzbektelecom” on perspective, with the aim of effective realization its scientific-technical potentials and improving its competitiveness in terms of modernization the national economy.
Practical value: the results of the research can be applied in communication and informatization enterprises in structural branches of national economy, to improve the mechanisms of administration, to define the conceptions and programs of innovational improvement. Scientific outcomes of the dissertation can be used in higher education institutions as a textbook and teaching materials to teach the “Innovational management” and “Economics of enterprise”.
Degrees of embed and economic affectivity: the research outcomes had used at Tashkent Institute of Information Technology (Reference №869/02 in 12.09.2008), in «Uzbektelecom» Namangan branch (Reference №01-01/1085 in 17.09.2008), and to develop the parts Ф 6.1.2: ’’Methodological bases to develop and improve the competitiveness of national economy in terms of liberalization”, “ФА-Ф7-004”: «Innovational model of developing the competitiveness of national economy».
Fields of application: inter-branches and educational process

The aim of the research work is the development of a technique for calculating the seismodynamics of underground pipelines with complex conditions of interaction with soil.
Scientific novelty of the research work consists in the following: solution techniques for wide application of approximate numerical methods to the problems of seismodynamics of underground pipelines are improved; a technique for calculating stress-strain state (SSS) of underground pipelines under longitudinal oscillations is developed, it takes into account the linear and nonlinear interactions in “pipe-soil” system; a technique for calculating stress-strain state of complex systems of underground pipelines under the influence of seismic loads with distributed masses is developed; a technique for calculating stress-strain state for pipeline systems of orthogonal and non-orthogonal configurations is developed for an arbitrary direction of seismic loads.

This article explores the potential benefits of aciding Smart TV streaming functionality to Telegram. By focusing on secure, privacy-conscious video streaming. Telegram could provide users with a convenient and immersive way to enjoy content on larger screens, setting it apart from other platforms. The introduction of this feature could attract more users and position Telegram as a leader in privacy-first entertainment.

The aim of the research is to develop the scientific and methodological foundations for increasing the efficiency of the functioning of infocommunication network structures on the basis of models and mechanisms of associative interaction in computing environment.
The object of the research work are distributed infocommunication networking structures.
The scientific novelty of the research work is as follows:
an approach to the research of information processes in infocommunication networking structures based on the principles of organization of Middleware environment is developed;
the principles of realization of associative interaction of components of infocommunication networking structures that allow to achieve intellectualization of their behavior are developed;
conceptual bases of research and creation of objects in distributed computing systems is developed, allowing to display the behavior of objects on implementation of various functions;
models and mechanisms of functional interaction of components in infocommunication networking structures are developed with taking into account of associative connections;
conceptual model of intellectual control of processes and/or mechanisms involved in distributed computing is developed that reflects the essential properties and formalized schemas of object relationships and the relationship of processes of information interaction and processing;
mechanisms of information exchange of intra- and inter-system nature are improved that allow to organize effective procedures for algorithms and programs in infocommunication networking structures.