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Документ Применение капиллярных световодов в спектроскопии(НТУ "ХПИ", 2003) Лазаренко, Анатолий Григорьевич; Андреев, Александр НиколаевичThe review of different capillary light guides applications in spectroscopy. Newely developed capillaries with light guiding properties with water solutions fillings main features and applications methods are discussed. Theoretical possibilities of capillary light guides application in correlation spectroscopy particles sizes determination are shownДокумент Вариации относительного содержания молекулярных ионов в зависимости от сезона и магнитной активности(НТУ "ХПИ", 2003) Григоренко, Е. И.; Живолуп, Т. Г.; Таран, В. И.In this paper the theoretical model for the lower part of the F layer of ionosphere is presented. This model enables to calculate the absolute and relative concentrations of the molecular ions. The altitude-temporal variations of the ion composition for summer and winter are described. The variations of the transition height from molecular ions to atomic oxygen ions during the magnetic storm are consideredДокумент Распределение корреляционного функционала при дискретном представлении сигналов НР(НТУ "ХПИ", 2003) Мазманишвили, Александр Сергеевич; Рогожкин, Евгений ВасильевичIs it considered correlation functional, determined on complex-value normal Markov process. The expressions describing statistical properties such functional are receiveДокумент Информационные возможности цифровой обработки радиосигналов с известной несущей частотой(НТУ "ХПИ", 2003) Рогожкин, Евгений Васильевич; Белозёров, Д. П.; Ерёмин, А. Н.In modern conditions the fundamental part of signal processing is carried out by a means of digital computer technology. Thereof the digital systems of processing appear by more flexible, that allows to adapt for varied conditions, and thus in the large degree exclude mistakes of analog transformation. In paper the possibilities of the shortest transition from analogue processing (reception, amplification) to digital representations are considered. Signal, at which there are noticeable losses of the informationДокумент Процессы в околоземном космосе, сопровождавшие магнитную бурю 1 октября 2002 года(НТУ "ХПИ", 2003) Пазюра, С. А.; Черняк, Ю. В.Abstract Parameters variations researches results of ionosphere, which accompanied a magnetic storm with the main phase on October 1, 2002, performed on the Kharkov incoherent scatter radar are presented. According to time variations of concentration, speed, ion temperature of solar wind, induction module variation of IMF measured on artificial satellite "ACE" the picture of the sudden beginning, and also courses of an ionospheres storm is restoredДокумент Особенности работы радара некогерентного рассеяния со сложным зондирующим сигналом(НТУ "ХПИ", 2003) Скляров, И. Б.; Черняк, Ю. В.In a paper instrumental and methodical peculiarities of a construction of two- frequency systems for a measurement of ionospheric parameters by a IS technique are considered. The structure and operation exposition of a synchronization and assigning system of the radar IS by realizing a two- frequency mode of an ionosphere exploration is reduced. The results of experimental measurements in by using of this mode are presentedДокумент Особенности теплового режима нейтральной атмосферы во время магнитной бури 25.09.98(НТУ "ХПИ", 2003) Григоренко, Е. И.; Лысенко, В. Н.; Таран, В. И.; Черногор, Л. Ф.The Kharkov incoherent scatter radar observations daring the September 25,1998 severe magnetic storm showed the enhancement of the neutral atmosphere temperature Tn by about-250-720 К over the 250-450 km altitude range. Tn increase is explained in terms of high latitude and local Joule heatinДокумент Способ учета начальной температуры объекта органического происхождения при замораживании(НТУ "ХПИ", 2003) Горбунов, Константин АлександровичIn chemical technology the Planck equation is used for the description of the cooling process of the organic derivation materials with their subsequent refrigerating. By such viewing initial temperature is supposed cryoscopy, that restricts its application for biological objects. In the present paper the method of the account of initial temperature based on the application of the adiabatic approach for the dependence of the volume average temperature for a non-refrigerated part of the object from time is proposedДокумент Обзор и сравнение характеристик методов зондирования ионосферы сигналами с разными видами манипуляций(НТУ "ХПИ", 2003) Бескровцев, Ф. Ю.In article different views of signals, their limitation and advantages surveyed in examination of an ionosphere, and an opportunity of their application in the equipment of a radar incoherent dispersions. Some features of operation of the radio transmitter cicumscribed at application signals with différent views of manipulations equipments of a radar dependent on the circuit solutionДокумент Высотная корреляция квазипериодических флуктуаций мощности некогерентно рассеянного сигнала, сопровождавших прохождение солнечного терминатора и старты космических аппаратов(НТУ "ХПИ", 2003) Бурмака, В. П.; Ерёмин, А. Н.; Подъячий, Юрий Иванович; Таран, В. И.Correlation coefficient variations research results of incoherent scatter signal power fluctuations in the range of heights 100-500 km are described. Quasi-periodic changes of high-altitude correlation coefficient are detected and explained. They are connected with solar terminator movement and launch of space vehicles from the Baikonur and Cape Canaveral cosmodromesДокумент Обеспечение достоверности определения скорости дрейфа ионосферной плазмы методом некогерентного рассеяния(НТУ "ХПИ", 2003) Емельянов, Л. Я.; Скляров, И. Б.The some aspects of ensuring of reliable ionospheric plasma drift velocity measurements by incoherent scatter method are considered. The substantiation of use of control signals for this purpose is presented. The principle of construction of the simulator of a Doppler shift of noise-like signal is consideredДокумент Положительная фаза ионосферных бурь и особенности ее проявления на средних широтах по данным радара НР в Харькове(НТУ "ХПИ", 2003) Захаров, И. Г.; Мозговая, О. Л.; Таран, В. И.Magnetic disturbances different in tensity are analyzed by the electron density and vertical plasma drift velocity data that received by incoherent scatter methods at the Institute of ionosphere doring 1997-2002. The effects of ionospheric condition before storm commences are development to the evolution character of ionospheric distribution. It is shown mechanisms inducing are the both the variations of meridional component thermospheric wind velocity and energy ejection through polar caspДокумент Оптимизация обнаружения сигналов в радиотехнических системах ближней навигации(НТУ "ХПИ", 2003) Обод, Иван Иванович; Полюга, В. П.The problem of optimal detection of the range interrogating and answering signals of radiotechnic systems of short-range navigation is consideredДокумент Метод статистических испытаний эффективности алгоритмов оценки ионосферных параметров в методе НР(НТУ "ХПИ", 2003) Мазманишвили, Александр Сергеевич; Пуляев, Валерий АлександровичNumerical experimental results of with multiparameter statistical model are given with the purpose of revealing influence of processing methods on accuracy and reliability of ratings ionospheric dataДокумент Оператори двовимірного фінітного дискретно-неперервного перетворення Фур'є на основі сплайнів першого степеня, точні на тригонометричних поліномах заданого порядку(НТУ "ХПІ", 2003) Литвин, О. М.; Удовиченко, В. М.The operators of calculation of two-dimensional finite discretery-continuous Fourier Transform on the basis of splines of the first degree were in vestigated. These operators are precise on trigonometric polynomials of corresponding degree. Their interpolation properties are researched. The estimation of error approximating of complex functions of two real variables by the offered operators is given. The example is givenДокумент Вариации электронной концентрации ионосферы в спокойных условиях по данным Харьковского радара НР(НТУ "ХПИ", 2003) Дзюбанов, Дмитрий Анатольевич; Захаров, И. Г.; Ляшенко, М. В.Variations of electron density N of the F-region of an ionosphere in quiet conditions for 1997-1999 are considered. Values N measured by Kharkov in coherent scatter radar and calculated on the global ionospheric models IRI-90 and IRI-2000 for two magnetic quiet periods April and May 1998 are compared. From comparison of experimental and calculated values N it is evident, that the modelling data are more characteristic for conditions of the western hemisphere and that existing global models do not always correctly reflect distribution of parameters of an ionosphere of the East-European region even in quiet conditionsДокумент Расчет волнового сопротивления копланарно связанных линий пакета пленочного кабеля(НТУ "ХПИ", 2003) Антонова, В. А.; Борщев, В. Н.; Резник, А. П.In paper the designed mathematical model for calculation of a characteristic impedance of a signal cable taking into account finite width of conductors of multiplayer coplanar coupled lines, and outcomes of researches of dependence of a characteristic impedances from geometrical sizes of conductors, clearances between them and thickness of a covering film is reduced. The possibility of obtaining of optimal characteristic impedance of transmissions lines is shown