Навчально-науковий інститут інформаційно-діагностичних систем (ННІДС)
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Item A brief overview of modern software optimization approaches(National Aviation University, 2018) Pristavka, P.O.Item A New Approach in Cluster Analysis(Kyiv, “Osvita Ukrainy”, 2017-10) Sineglazov, V.M.; Chumachenko, O.I.; Gorbatiuk, V.S.A new clustering approach that is capable of finding clusters that are separated by some complex hypersurface is proposed. The approach can be useful for performing analysis of big amounts of unlabeled images that can be nowadays easily gathered, in particular by using unmanned aerial vehicle with mounted cameras. The approach is based on “softening” the initial clustering criterion and then using nonlinear optimization to find the optimal hypersurface that separates clusters.Item Adaptive method of forming weights without reference signal(National Aviation University, 2012-09-25) Shvets, Valerian Anatoliyovych; Klobukov, Vitaliy Vitaliyovych; Швець, В.А.; Клобуков, В.В.The method of calculating the weighting coefficients in the adaptive antenna array of GPS systems in the absence of a reference signal in the user segment to obtain a directional diagram that increases immunity is described.Item Adaptive method of forming weigthout reference signal(2013) Клобуков, Віталій Віталійович; Швець, В.А.Item Analysis of Informativity of Anomalous Geomagnetic Field Databases for Aided UAV Navigation(Kyiv, “Osvita Ukrainy”, 2017-10) Mukhina, Maryna; Babeniuk, GannaAnalysis of existent anomalous geomagnetic field map has been done. Informativity of map has been estimated as trajectory data in terms of variance, signal-to-noise ratio and correlation radius. The recommendations and general algorithm for realization of geomagnetic aided navigation have been developed and proved.Item ANTENNA ARRAY AS A CONSTRUCTIVE ELEMENT OF INCREASING CYBER-SECURITY OF NETWORK SATELLITE SYSTEM RECEIVERS(Національний авіаційний університет, 2018-03-30) Швець, Валеріян Анатолійович; Харченко, Володимир ПетровичPurpose: To adapt the techniques of constructive synthesis of phased antenna arrays. On the basis of the received technique, to optimize the antenna array of receiving devices of consumer equipment for the adaptive antenna system of network satellite systems. Methods: the approach is based on the methods for synthesis of phased antenna arrays and antennas with a continuous opening. Results: in the article we have suggested a method for the constructive synthesis and optimization of the antenna array of adaptive systems of interference compensation for receiving devices of global navigation satellite systems on the basis of the methods for the synthesis of phased antenna arrays PAR in the form of a directional pattern. The method of synthesizing the antenna array is confirmed by the modeling results. Discussion: The method is proposed for designing the optimal antenna array in the adaptive antenna system of the receiving devices of consumer equipment of the network satellite systems, for protection from cyber threats - ensuring accessibility and integrity of navigational data.Item Application of Wavelet Transform for Determining Diagnostic Signs(CEUR-WS, 2019-06) Isaienko, Volodymyr; Babikova, Kateryna; Eremenko, Volodymyr; Zaporozhets, ArturIt is proposed to apply the wavelet transform to localize in time the frequency components of the information signals in this article. The wavelet transform allows to fulfil time-frequency analysis of signals, which is very important for studying the structure of a composite material from the mode composition of free oscillations. The proposed approach to the development of information signals using wavelet transform makes it possible to further study the nature of the occurrence of free oscillations and the propagation of acoustic waves in individual layers of composites and to study the change in the structure of composites from the changes in the three-dimensional wavelet spectrum.Item Approach of a Tanker Aircraft to the Remote-Controlled Drogue of the Air-to-Air Refueling System(Kyiv, “Osvita Ukrainy”, 2017-10) Filyashkin, M.K.Here are considered benefits of airlift using an air-to-air refueling civil aircraft. Such technologies provide in particular for regional aircraft their main advantages at long flights. There are proposed variants of automation of approach of refueling devices using a predictive model.Item Approximate solution to abstract differential equations with variable domain(2010-03) Vasylyk, V.B.A new exponentially convergent algorithm is proposed for an abstract the first order differential equation with unbounded operator coefficient possessing a variable domain. The algorithm is based on a generalization of the Duhamel integral for vector-valued functions. This technique translates the initial problem to a system of integral equations. Then the system is approximated with exponential accuracy. The theoretical results are illustrated by examples associated with the heat transfer boundary value problems.Item Asymptotic normality of improved weighted empirical distribution functions(Theory Probab. Math. Stat, 2004) Кубайчук, Оксана Олексіївна; Майборода, Р.ЄWeighted empirical distribution functions are often used to estimate the distributions of components in a mixture. However, weighted empirical distribution functions do not possess some properties of probability distribution functions in the case of negative weight coefficients. We consider a method allowing one to improve weighted empirical distribution functions and obtain an estimator that is a distribution function. We prove that this estimator is asymptotically normal. The limit distribution of the improved weighted empirical distribution function coincides with that of the initial estimator.Item Automated Guidance System Drogue to Probe Tanker During in-Flight Refueling(Osvita Ukrainy, 2016-10) Filyashkin, M.K.Here are considered benefits of airlift using a phase in-flight refueling civil aircraft. Such technologies provide in particular for regional aircraft their main advantages at long flights. The variants of automation of this phase of the flight are proposedItem Bis(4'-(4-pyridyl)-2,2':6',2"-terpyridine) ruthenium(II) complexes and their N-alkylated derivatives in catalytic light-driven water oxidation(RSC, 2013) Zhuk, Petro; Hongjin, LvItem Calculation and Analysis of Initial Conditions at Takeoff of UAV with Springboard(Osvita Ukrainy, 2015-10) Tupitsin, Nikolay; Malakhov, Sergey; Shcherbina, LizaIn article the initial constructive part of springboard is proposed. Also, the calculation and analysis of unmanned aerial vehicle initial conditions at takeoff with spring-loaded final part of springboard are executed. The two technical contrivances as spring-loaded final part were considered: elastically restrained plate and spring-loaded bridge.Item Calculation of consumer and manufacturer risks for unmanned aerial vehicle checkout equipment(Osvita Ukrainy, 2016-10) Tupitsin, N.F.; Krymov, E.О.; Stepanenko, I.C.The paper presents description of algorithms for calculation values of consumer and manufacturer risks. Determination of UAV technical state with the account of received risks reflects the information about how much more it will work.Item Chapter 7. Monitoring the fuel combustion process based on actual measuring of oxygen concentration in the air(“East West” Association for Advanced Studies and Higher Education GmbH, 2017) Zaporozhets, Artur; Redko, Oleksandr; Zamurnjak, OleksandrItem Circular Measurement Data Modeling and Statistical Processing in LabView(2011-08-25) Kuts, Yury; Shengur, Svetlana; Scherbak, LeonidThe paper represents methods and the software for modelling and statistical proceeding of some common circular data analysis tasks. These tasks include computation of sample circular estimates such as mean direction, median, mode, variance, range, trigonometric moments, skewness, kurtosis and their confidence intervals.Item Classification of Decision-Making Information Models as a Part of Aircraft Control System(MSNMC "IEEE-2016", 2016) Павленко, Петро Миколайович; Zaritskyi, O.Theoretical basis of decision-making models analysis information system as a part of aircraft flight control system from knowledge based system approach has been presented. As well classification of decision-making models is been described for the further development of artificial intellect “consulting” systems.Item Classification of Decision-Making Information Models as a Part of Aircraft Control System(2016-10) Зарицкий, Олег; Павленко, Петро МиколайовичTheoretical basis of decision-making models analysis information system as a part of aircraft flight control system from knowledge based system approach has been presented. As well classification of decision-making models is been described for the further development of artificial intellect “consulting” systems.Item Comparison of some methods for solving the internal wave propagation problem in a weakly stratified fluid(Shpringer Link, 2011) Москальков, М.НItem Competence assessment method of the expert group(Proceedings of the National Aviation University, 2014) Павленко, Петро Миколайович; Tolbatov, S.The article deals with the approach to complex assessment of expert group competences. Author analyzes group of experts, who is responsible for credit and factor assessment of work complexity.