³äá³ð ³ îáðîáêà ³íôîðìàö³¿, ¹ 16(92), 2002
ÀÍÎÒÀÖ²¯
ÏÎËß ÒÀ ÑÈÃÍÀËÈ Â ÍÅÎÄÍÎвÄÍÈÕ ÑÅÐÅÄÎÂÈÙÀÕ
ÓÄÊ 538.3:550.372:620.1:621.6
Ð. Ì. Äæàëà
ÅËÅÊÒÐÈ×ÍÅ ÏÎËŠϲÄÇÅÌÍÎÃÎ ÒÐÓÁÎÏÐÎÂÎÄÓ: ÏÎÕÈÁÊÈ ÅËÅÊÒÐÎÌÅÒв¯
The distribution of electric field and current density, that leakage from cylinder, placed into half-space in parallel to his bounder are considered. The measuring mistakes of transversal effort on ground surfaces and potentials differences pipe-earth attached to inspections of underground pipelines are analysed. Been accorded ground resistance determination algorithm.
Ðîçãëÿíóòî ðîçïîä³ë åëåêòðè÷íîãî ïîëÿ òà ãóñòèíè ñòðóìó, ùî âèò³êຠç öèë³íäðà, ðîçì³ùåíîãî â åëåêòðîïðîâ³äíîìó ï³âïðîñòîð³ ïàðàëåëüíî éîãî ãðàíèö³. Ïðîàíàë³çîâàíî ïîõèáêè ì³ðÿííÿ ïîïåðå÷íî¿ íàïðóãè íà ïîâåðõí³ ´ðóíòó òà ð³çíèö³ ïîòåíö³àë³â òðóáà-çåìëÿ ï³ä ÷àñ åëåêòðîìåòðè÷íèõ îáñòåæåíü ï³äçåìíèõ òðóáîïðîâîä³â. Îòðèìàíî àëãîðèòì âèçíà÷åííÿ îïîðó ôóíòó.
ÓÄÊ 621.317.337
Ë. Ï. Äèêìàðîâà, Â. Þ. Êîðí³ºíêî
ÂÈÇÍÀ×ÅÍÍß ÐÎÇ̲в ÍÀÑÊвÇÍÈÕ ÏÎØÊÎÄÆÅÍÜ ²ÇÎËßÖ²¯ ϲÄÇÅÌÍÈÕ ÒÐÓÁÎÏÐÎÂÎIJ
The obtained results of determination of underground pipeline insulation transparent damages dimensions with the help of attenuation coefficient of currents in separate sections are presented. It is shown that measurement of pipeline current with the error no more than 0.5 % is sufficient for certain determination of damage dimensions.
Âèêëàäåíî ðåçóëüòàòè âèçíà÷åííÿ ðîçì³ð³â íàñêð³çíèõ ïîøêîäæåíü ³çîëÿö³¿ ï³äçåìíèõ òðóáîïðîâîä³â çà äîïîìîãîþ êîåô³ö³ºíòà çàíèêàííÿ ñòðóìó íà îêðåìèõ ä³ëÿíêàõ. Ïîêàçàíî, ùî äëÿ âïåâíåíîãî âñòàíîâëåííÿ ðîçì³ðó ïîøêîäæåííÿ äîñòàòíüî ì³ðÿòè ñòðóì ó òðóáîïðîâîä³ ç ïîõèáêîþ, íå á³ëüøîþ í³æ 0.5 %.
ÓÄÊ.620.179.14
3. Ò. Íàçàð÷óê, Â. Ì. Çèáîâ, À. ª. Óëüãóðñüêèé
ÌÎÄÅËÞÂÀÍÍß ÊÎÌÏÅÍÑÓÂÀËÜÍί ÔÓÍÊÖ²¯ Ó ÄÂÎ×ÀÑÒÎÒÍÎÌÓ ÂÈÕÐÎÑÒÐÓÌÎÂÎÌÓ ÊÎÍÒÐÎ˲
Application of two-frequency compensation method in the problems of factor's separate control in the case of noise's influence depression, useful signal's multiplication at small "signal / noise" corellation and at simultaneous noise and the controlled signal variation is considered.
Ðîçãëÿíóòî çàñòîñóâàííÿ äâî÷àñòîòíîãî ìåòîäó êîíòðîëþ â çàäà÷àõ ðîçä³ëüíîãî êîíòðîëþ ôàêòîð³â äëÿ çìåíøåííÿ âïëèâó çàâàäè, ï³äñèëåííÿ êîðèñíîãî ñèãíàëó ïðè ìàëèõ ñï³ââ³äíîøåííÿõ "ñèãíàë / çàâàäà" òà çà îäíî÷àñíî¿ çì³í³ çàâàäè òà êîíòðîëüîâàíîãî ôàêòîðà.
ÓÄÊ 620.179.14
À. ß. Òåòåðêî, Â. I. Ãóòíèê
ÍÅ˲ͲÉÍÀ ÌÎÄÅËÜ Â²ÄÃÓÊÓ ÏÅÐÂÈÍÍÎÃÎ ÏÅÐÅÒÂÎÐÞÂÀ×À ÄËß Ï²ÄÂÈÙÅÍÍß ÒÎ×ÍÎÑÒ² ÑÅËÅÊÒÈÂÍÎÃÎ ÂÈÕÐÎÑÒÐÓÌÎÂÎÃÎ ÊÎÍÒÐÎËÞ ÏÀÐÀÌÅÒв ÎÁÎËÎÍÎÊ
The mathematical model of the transfer function of the eddy current probe - nonferrous plate system construction is proposed. On this basis the solution of inverse problem of selective measurement of the plate conductivity, thickness and coating thickness with a small error is obtained.
Çàïðîïîíîâàíî ìåòîäèêó ïîáóäîâè ìàòåìàòè÷íî¿ ìîäåë³ ôóíêö³¿ ïåðåòâîðåííÿ ñèñòåìè âèõðî-ñòðóìîâèé ïåðâèííèé ïåðåòâîðþâà÷ - îá'ºêò êîíòðîëþ ³ íà ¿¿ îñíîâ³ ðîçâ'ÿçàíî îáåðíåíó çàäà÷ó ñåëåêòèâíîãî êîíòðîëþ ïèòîìî¿ åëåêòðè÷íî¿ ïðîâ³äíîñò³, òîâùèí îáîëîíêè ³ ä³åëåêòðè÷íîãî ïîêðèòòÿ (çàçîðà) ç ìàëîþ, äî äåñÿòèõ äîëåé â³äñîòêà, ïîõèáêîþ.
ÓÄÊ 681.513
Ä. Ã. Äîñèí, Â. Â. Êîøîâèé
×ÈÑÅËÜÍÅ ÌÎÄÅËÞÂÀÍÍß ÏÎØÈÐÅÍÍß ÊÎÑ̲×ÍÎÃÎ ÄÅÊÀÌÅÒÐÎÂÎÃÎ ÐÀIJÎÂÈÏÐÎ̲ÍÞÂÀÍÍß ÊвÇÜ ²ÎÍÎÑÔÅÐÓ ÇÅÌ˲
The algorithm of numerical modeling of the decametric space radio emission propagation through the Earth ionosphere containing TID-like large scale electron density inhomogeneities was proposed and elaborated. In the algorithm an approach of geometry optics and step-by-step trajectory and propagated wave parameters estimation had been applied.
Ðîçðîáëåíî àëãîðèòì ÷èñåëüíîãî ìîäåëþâàííÿ òðàºêòî𳿠òà ïàðàìåòð³â ïîøèðåííÿ äåêàìåòðîâîãî êîñì³÷íîãî ðàä³îâèïðîì³íþâàííÿ êð³çü ³îíîñôåðó Çåìë³, ùî ì³ñòèòü âåëèêîìàñøòàáí³ íåîäíîð³äíîñò³ åëåêòðîííî¿ êîíöåíòðàö³¿ òèïó ðóõîìèõ ³îíîñôåðíèõ çáóðåíü. Çàñòîñîâàíî íàáëèæåííÿ ãåîìåòðè÷íî¿ îïòèêè òà ïîêðîêîâèé ðîçðàõóíîê òðàºêòî𳿠³ ïàðàìåòð³â õâèë³, ùî ïîøèðþºòüñÿ.
ÓÄÊ 621.382.019
Â. Î. ͳ÷îãà, Î. Ï. Îñòàï, Ï. Á. Äóá
ØÓÌβ ÂËÀÑÒÈÂÎÑÒ² ÊÎÍÒÀÊÒÍÈÕ ÄÅÔÅÊÒ²Â
Ó Á²ÏÎËßÐÍÎÌÓ ÒÐÀÍÇÈÑÒÎв
In this work the influence of contact defects in a bipolar transistor on low frequency noise parameters of an amplifier, modeled by the canonical equivalent noise scheme, is considered. Appearance of essential changes of correlation connection between the equivalent noise sources of the canonical model is shown.
Ðîçãëÿíóòî âïëèâ êîíòàêòíèõ äåôåêò³â ó á³ïîëÿðíîìó òðàíçèñòîð³ íà íèçüêî÷àñòîòí³ øóìîâ³ ïàðàìåòðè ï³äñèëþâà÷à ïðè ìîäåëþâàíí³ êàíîí³÷íîþ åêâ³âàëåíòíîþ øóìîâîþ ñõåìîþ. Ïîêàçàíî ïîÿâó ñóòòºâèõ çì³í êîðåëÿö³éíèõ çâ'ÿçê³â åêâ³âàëåíòíèõ äæåðåë øóìó êàíîí³÷íî¿ ìîäåë³.
ÓÄÊ 538.8.029.6
Ò. Ä. Ñåíèê
ÌÎÄÅËÞÂÀÍÍß ÂÇÀªÌÎIJ¯ Å-ÏÎËßÐÈÇÎÂÀÍί ÅËÅÊÒÐÎÌÀÃͲÒÍί ÕÂÈ˲ Ç ÁÀÃÀÒÎÅËÅÌÅÍÒÍÎÞ ¥ÐÀÒÊÎÞ Ó Ï²ÂÏÐÎÑÒÎв
The problem of electromagnetic plane wave diffraction by multielement grating imbedded in a half-space is considered in the case of TM-polarization. A system of linear algebraic equations is derived by satisfying the necessary boundary conditions, application of the specially constructed quadrature formulae and an appropriate Green function calculation. Numerical results describing the resonance characteristics of the cascaded grating are presented in the paper.
Ðîçãëÿíóòî çàäà÷ó äèôðàêö³¿ ïëîñêî¿ Å-ïîëÿðèçîâàíî¿ åëåêòðîìàãí³òíî¿ õâèë³ íà áàãàòîåëåìåíòí³é ´ðàòö³, çàíóðåí³é ó ï³âïðîñò³ð. Ç íåîáõ³äíèõ ãðàíè÷íèõ óìîâ îòðèìàíî ñèñòåìó ñèíãóëÿðíèõ ³íòåãðàëüíèõ ð³âíÿíü, ùî çâåäåíà äî ñèñòåìè ë³í³éíèõ àëãåáðè÷íèõ ð³âíÿíü ç äîïîìîãîþ ôóíêö³¿ Ãð³íà òà ñïåö³àëüíî¿ êâàäðàòóðíî¿ ôîðìóëè. Ïîäàíî ÷èñåëüí³ ðåçóëüòàòè, ùî îïèñóþòü ðåçîíàíñí³ âëàñòèâîñò³ êàñêàäíî¿ ´ðàòêè, çàíóðåíî¿ ó ï³âïðîñò³ð.
ÌÀÒÅÌÀÒÈ×Ͳ ÌÎÄÅ˲ ÑÈÃÍÀ˲ ÒÀ ÑÈÑÒÅÌ
ÓÄÊ 519.853
Ï. Ã. Ñòàõ³â, Þ. ß. Êîçàê
ÌÎÄÈÔ²ÊÀÖ²ß ÌÅÒÎÄÓ ÊÎÍÓÑÀ ÐÀÑÒÐÈòÍÀ
The local statistical optimisation based on Rastrigin's conus method is considered. Criteria and algorithms of adaptation of search parameters are proposed. Some examples are considered.
Ðîçãëÿíóòî ëîêàëüíó ñòàòèñòè÷íó îïòèì³çàö³þ çà ìåòîäîì íàïðÿìíîãî êîíóñà Ðàñòðèã³íà. Çàïðîïîíîâàíî êðèòå𳿠òà àëãîðèòìè àäàïòàö³¿ ïàðàìåòð³â ïîøóêó. Íàâåäåíî òåñòîâ³ ïðèêëàäè.
ÓÄÊ 681.513:519.6
Ì. Ï. Äèâàê
ÎÁ×ÈÑËÞÂÀËÜͲ ÀÑÏÅÊÒÈ ÌÅÒÎIJ ËÎÊÀ˲ÇÀÖ²¯ ÐÎÇÂ'ßÇʲ ÇÀÄÀ× ÏÀÐÀÌÅÒÐÈ×ÍÎÃÎ ÎÖ²ÍÞÂÀÍÍß Â ÓÌÎÂÀÕ ÎÁÌÅÆÅÍÈÕ ÏÎÕÈÁÎÊ
The task of linear parametrical estimating in conditions of the bounded errors is considered. The limitations of existing computing methods of this task solving are shown. A new methods principles are elaborated on the basis of the analysis.
Ðîçãëÿíóòî çàäà÷ó ë³í³éíî-ïàðàìåòðè÷íîãî îö³íþâàííÿ â óìîâàõ îáìåæåíèõ ïîõèáîê. Ïîêàçàíî îáìåæåííÿ ³ñíóþ÷èõ îá÷èñëþâàëüíèõ ìåòîä³â ¿¿ ðîçâ'ÿçóâàííÿ. Íà îñíîâ³ àíàë³çó ñôîðìóëüîâàíî ïðèíöèïè ïîáóäîâè íîâèõ ìåòîä³â.
ÓÄÊ 621.77(088.8)
Î. Â. Çàáîëîòíèé, Â. Þ. Ìèõàéëèøèí, ². Ì. ßâîðñüêèé
ÀÍÀË²Ç Â²ÐÎòÄÍÎÑÒ² ÎÖ²ÍÎÊ ²ÌβÐͲÑÍÈÕ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ÑÈÃÍÀË²Â Ç ÏÎ˲ÐÈÒ̲×ÍÎÞ ÑÒÐÓÊÒÓÐÎÞ
The simplest models of periodically correlated random process and bi- periodically correlated random process are considered. The quality of mean estimation obtained by component method and the least squares method is in the paper.
Ðîçãëÿíóòî íàéïðîñò³ø³ ìîäåë³ ïåð³îäè÷íî òà á³-ïåð³îäè÷íî êîðåëüîâàíèõ âèïàäêîâèõ ïðîöåñ³â. Ïîð³âíÿíî îö³íêè ìàòåìàòè÷íîãî ñïîä³âàííÿ, îòðèìàí³ çà äîïîìîãîþ êîìïîíåíòíîãî ìåòîäó òà ìåòîäó íàéìåíøèõ êâàäðàò³â.
ÓÄÊ 531.8+62-50
Ì. ². Øèðêî
ÅÍÅÐÃÅÒÈ×ÍÎ-ÑÓÁÎÏÒÈÌÀËÜÍÅ ÊÅÐÓÂÀÍÍß ÏËÎÑÊÈÌ ÒÐÈËÀÍÊÎÂÈÌ ÌÀͲÏÓËßÒÎÐÎÌ
This paper deals with the optimal control problem of three-link anthropomorphic manipulator. The problem of approximation of the obtained optimal control torques by the moment of forces, exerted by the spring-damper-like drives is studied.
Ðîçãëÿíóòî çàäà÷³ îïòèìàëüíîãî êåðóâàííÿ òðèëàíêîâîþ àíòðîïîìîðôíîþ ìàí³ïóëÿö³éíîþ ñèñòåìîþ. Äîñë³äæåíî çàäà÷ó íàáëèæåííÿ îòðèìàíèõ îïòèìàëüíèõ êåðóþ÷èõ ìîìåíò³â ìîìåíòàìè ñèë, ùî ãåíåðóþòüñÿ ïðóæèííî-äåìïôåðíèìè ïðèâîäàìè.
ÓÄÊ 518.5+ 550.832
Ñ. ²ñêåðêà, [ Á. Î. Ïîïîâ ]
ÌÎÄÅ˲ ÌÀÃͲÒÍÈÕ ÂËÀÑÒÈÂÎÑÒÅÉ ÊÎÍÑÒÐÓÊÖ²ÉÍί ÑÒÀ˲
The method of parameters obtaining of best Chcbyshev weight approximation by sum of polynomial and generalized exponential function is built. On the base of such approximations the models of constructive steel magnetize curve and dependence of magnetic pole from tension were obtained.
Çàïðîïîíîâàíî ìåòîä çíàõîäæåííÿ ïàðàìåòð³â: íàéêðàùîãî ÷åáèøîâñüêîãî çâàæåíîãî íàáëèæåííÿ ñóìîþ ìíîãî÷ëåíà òà óçàãàëüíåíî¿ åêñïîíåíö³àëüíî¿ ôóíêö³¿. Íà îñíîâ³ òàêîãî íàáëèæåííÿ ïîáóäîâàíî ìîäåë³ êðèâî¿ íàìàãí³÷óâàííÿ êîíñòðóêö³éíî¿ ñòàë³ òà çàëåæíîñò³ ìàãí³òíîãî ïîëÿ â³ä íàïðóæåíîñò³.
ÓÄÊ 539.2:537.222:536.7
Î. Â. Ãóê, ß. ª. ϳäã³ðíÿê, Ï. Ì. Ñîïðóíþê, Â. Ì. Þçåâè÷
×ÈÑÅËÜÍÅ ÌÎÄÅËÞÂÀÍÍß ÅËÅÊÒÐÈ×ÍÎÃÎ ÒÀ ÌÅÕÀͲ×ÍÎÃÎ ÏÎË²Â Ó ÏÎÂÅÐÕÍÅÂÎÌÓ ØÀв ÑÂÈÍÖÞ
The article contains the theoretical investigations of mechanical and electrical phenomena in defor-mable solid surface of metal Pb in the thermperature gebits T= [300 K; 0], T= [415 K; 600,5 K]. The calculations include three approximations.
Òåîðåòè÷íî äîñë³äæåí³ òåíäåíö³¿ çì³íè åëåêòðè÷íèõ ³ ìåõàí³÷íèõ ïàðàìåòð³â äëÿ ïîâåðõíåâîãî øàðó ñâèíöþ, ùî çíàõîäèòüñÿ ó òâåðäîìó ñòàí³, ï³ä ÷àñ îõîëîäæåííÿ â ä³àïàçîí³ òåìïåðàòóð Ò= [0; 300 Ê] ³ íàãð³âàííÿ â îáëàñò³ Ò=[415; 600,5 Ê]. Êîìï'þòåðí³ ðîçðàõóíêè âêëþ÷àþòü òðè íàáëèæåííÿ ðîçêëàäó ïàðàìåòð³â ñòàíó çà ìàëèì ïàðàìåòðîì.
ÎÁÐÎÁÊÀ ÂÈ̲ÐÞÂÀËÜÍί ²ÍÔÎÐÌÀÖ²¯
ÓÄÊ 621.317.337
Ï. Ï. Äðàáè÷, Î. Ï. Äðàáè÷, ². Ì. ßâîðñüêèé
ÇÀÑÒÎÑÓÂÀÍÍß ÐÅÊÓÐÅÍÒÍÈÕ ÀËÃÎÐÈÒ̲ ÄËß ÑÈÍÒÅÇÓ ÏÐÈÑÒÐί ÏÎØÓÊÓ Ï²ÄÇÅÌÍÈÕ ÅËÅÊÒÐÎÊÎÌÓͲÊÀÖ²É
The mathematical expressions for definition of the install depth of underground long current-conducting communications and the amplitude value of the current flowing on them by parameters of electromagnetic field radiated of them. For realization of listed expressions, the structure of electric signals registered on the ground surface and the recurrent algorithms of the averaging computing transformer synthesis are described.
Ïîäàíî ìàòåìàòè÷í³ âèðàçè äëÿ âèçíà÷åííÿ ãëèáèíè çàëÿãàííÿ ï³äçåìíèõ ïðîòÿæíèõ ñòðóìîïðîâ³äíèõ êîìóí³êàö³é òà àìïë³òóäè çì³ííîãî åëåêòðè÷íîãî ñòðóìó â íèõ çà ïàðàìåòðàìè âèïðîì³íþâàíèõ íèìè åëåêòðîìàãí³òíèõ ïîë³â. Äëÿ ðåàë³çàö³¿ öèõ âèðàç³â îïèñàí³ ñòðóêòóðà çàðåºñòðîâàíèõ íà ïîâåðõí³ ãðóíòó åëåêòðè÷íèõ ñèãíà÷³â òà ðåêóðåíòí³ àëãîðèòìè ñèíòåçó óñåðåäíþâàëüíèõ ïåðåòâîðþâà÷³â.
ÓÄÊ 621.317.3/4
Ï. Ì. Ñîïðóíþê, Â. Ì. Þçåâè÷, ß. ª. ϳäã³ðíÿê
ÌÎÐÑÜÊÈÉ ÊÎÌÓÒÀÖ²ÉÍÈÉ ÑÅÍÑÎÐ ÅËÅÊÒÐÈ×ÍÎÃÎ ÏÎËß
The article contains the describing of the new tipe of quasiconstant electrical field indicators, clearances of 1 mm are included between the working hydroswitch surfases. This increases reliability of indicator and decreases the hydroswitch supply power, makes the construction and producing technolody easier.
Îïèñàíî ïðèíöèï ïîáóäîâè òà ðîáîòó êîðîòêîáàçîâîãî ìîðñüêîãî ñåíñîðà êâàç³ïîñò³éíîãî åëåêòðè÷íîãî ïîëÿ íîâî¿ êîíñòðóêö³¿, â ÿêîìó ã³äðîïåðåìèêà÷ âèêîíàíî ó âèãëÿä³ ô³ãóðíî¿ çàñëîíêè ÿêà ìຠçàçîð ì³æ ðîáî÷èìè ïîâåðõíÿìè, ùî ïîêðàùóº éîãî ìåòðîëîã³÷í³ òà åêñïëóàòàö³éí³ õàðàêòåðèñòèêè.
ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ ÒÀ ÐÎÇϲ3ÍÀÂÀÍÍß ÎÁÐÀ3²Â
ÓÄÊ 621.325
P. À. Âîðîáåëü, ². Ì. Æóðàâåëü
ÏÎÊÐÀÙÀÍÍß ÇÎÁÐÀÆÅÍÜ ×ÅÐÅÇ ÏÅÐÅÒÂÎÐÅÍÍß ¯Õ ËÎÊÀËÜÍÈÕ ÊÎÍÒÐÀÑÒ²Â
A number of new approaches to image enhancement which are based on transformation in the local contrast domain and use of equalization, unsharp masking, rank transformation and nonlinear stretching of local contrast are proposed and proved.
Çàïðîïîíîâàíî é îá´ðóíòîâàíî íèçêó íîâèõ ï³äõîä³â äî ïîêðàùàííÿ çîáðàæåíü, ÿê³ áàçóþòüñÿ íà ïåðåòâîðåííÿõ â îáëàñò³ ëîêàëüíèõ êîíòðàñò³â òà âèêîðèñòîâóþòü âèð³âíþâàííÿ, ð³çíèöåâå ï³äñèëåííÿ, ðàíãîâå ïåðåòâîðåííÿ òà íåë³í³éíèé ðîçòÿã ëîêàëüíèõ êîíòðàñò³â.
ÓÄÊ 551.568.85
². Á. ²âàñåíêî
ÀËÃÎÐÈÒÌ ËÎÊÀ˲ÇÀÖ²¯ ÒÀ ÑÅÃÌÅÍÒÀÖ²¯ ÎÁ'ªÊÒ²Â Ó ÐÀIJÎÃÐÀÔ²×ÍÈÕ ÇÎÁÐÀÆÅÍÍßÕ ÍÀ ÎÑÍβ ÔÓÍÊÖ²¯ ²ÍÔÎÐÌÀÒÈÂÍÎÑÒ²
The proposed algorithm is developed for object localization and segmentation of low contrast images. It is based on piecewise-linear model of image intensity and mathematical morphology for modeling of local image objects.
Çàïðîïîíîâàíèé àëãîðèòì ðîçðîáëåíî äëÿ ëîêàë³çàö³¿ òà ñåãìåíòàö³¿ îá'ºêò³â ó íèçüêîêîíòðàñòíèõ çîáðàæåííÿõ. ³í áàçóºòüñÿ íà êóñêîâî-ë³í³éí³é ìîäåë³ ôóíêö³¿ ÿñêðàâîñò³ çîáðàæåííÿ òà àïàðàò³ ìàòåìàòè÷íî¿ ìîðôîëî㳿 äëÿ ìîäåëþâàííÿ ëîêàëüíèõ îá'ºêò³â.
ÓÄÊ 681.142.4
Á. Ï. Ðóñèí, ². Í. Ïðóäèóñ, Â. Ï. Îñòàï
ÑÏÎÒÂÎÐÅÍÍß É ÀËÃÎÐÈÒÌ ÏÎÏÅÐÅÄÍÜί ÎÁÐÎÁÊÈ ÄÀÊÒÈËÎÑÊÎϲ×ÍÈÕ ÇÎÁÐÀÆÅÍÜ
Some known fingerprint image distortions are described. A fingerprint image enhancement algorithm and some methods, which are using for pre-processing, are given. Finally we representing the result after using proposed algorithm.
Îïèñàíî â³äîì³ ñïîòâîðåííÿ äàêòèëîñêîï³÷íèõ çîáðàæåíü. Íàâåäåíî àëãîðèòì ¿õ ïîïåðåäíüî¿ îáðîáêè é îïèñàíî ìåòîäè, ÿê³ âèêîðèñòàí³ íà åòàïàõ àëãîðèòìó. ³äîáðàæåíî ïðàêòè÷í³ ðåçóëüòàòè çàñòîñóâàííÿ çàïðîïîíîâàíîãî àëãîðèòìó.
ÓÄÊ 621.391
Ð. ß. Êîñàðåâè÷, Á. Ï. Ðóñèí
ÄÅÒÅÊÒÓÂÀÍÍß ÖÅÍÒÐÀ ÏÀϲËßÐÍÎÃΠ²ÇÅÐÓÍÊÀ ÍÀ ÇÎÁÐÀÆÅÍͲ
A method for detecting singular core points of fingerprint based on Poincare index calculating from directional field points is presented. Using information related to each candidate, real core point is detected from a sophisticated logic.
Ïîäàíî ìåòîä äåòåêòóâàííÿ ñèíãóëÿðíèõ òî÷îê ïàï³ëÿðíèõ â³äáèòê³â íà îñíîâ³ îá÷èñëåííÿ ³íäåêñó Ïóàíêàðå òî÷îê ïîëÿ íàïðÿìê³â òà ðÿä ïðàâèë, íà îñíîâ³ ÿêèõ ìîæíà â³äêèíóòè õèáí³ òî÷êè. Ö³ ïðàâèëà ìàþòü çà ìåòó êîìïåíñóâàòè çàòðàòè íà äîäàòêîâó ïîïåðåäíþ îáðîáêó çîáðàæåííÿ.
ÓÄÊ 532.61: 681.327.12.001.33
À. Á. Êìåòü, Ñ. À. Íå÷èïîðóê
ÏÎÏÅÐÅÄÍß ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ Ó ÑÈÑÒÅ̲ ÅÊÑÏÐÅÑ-ÀÍÀ˲ÇÓ ÊÀϲËßÐÍÈÕ ÂËÀÑÒÈÂÎÑÒÅÉ ÐÎÇÏËÀ²Â. ×. 1
Software design questions of automated opto-electronic system for control and measuring of the material's capillary characteristics by the sessile drop method are considered. Utilization possibility and efficiency of a simple scale transforms for cut noise and edge detection problem's solution on the image preprocessing are shown.
Ðîçãëÿíóòî ïèòàííÿ ïðîãðàìíîãî çàáåçïå÷åííÿ àâòîìàòèçîâàíî¿ îïòîåëåêòðîííî¿ ñèñòåìè êîíòðîëþ ³ âèì³ðþâàííÿ êàï³ëÿðíèõ õàðàêòåðèñòèê ìàòåð³àë³â çà ìåòîäîì ëåæà÷î¿ êðàïë³. Ïîêàçàíà ìîæëèâ³ñòü òà åôåêòèâí³ñòü âèêîðèñòàííÿ ïðîñòèõ ãðàäàö³éíèõ ïåðåòâîðåíü äëÿ ïðèäóøåííÿ øóìó ³ âèä³ëåííÿ êîíòóðó îá'ºêòà ï³ä ÷àñ ïîïåðåäíüî¿ îáðîáêè éîãî çîáðàæåííÿ.
ÓÄÊ 621.325
Í. Â. Îïèð, Ð. À. Âîðîáåëü, Ì. Þ. Îïèð
ÑÈÑÒÅÌÀ "ÊÀÄÐ-Ì" ÄËß ÎÁÐÎÁÊÈ ÑËÀÁÎÊÎÍÒÐÀÑÒÍÈÕ ÇÎÁÐÀÆÅÍÜ
System is intended for image processing the low contrast images and it is useful for designing new image processing methods. Some operations on images are provided. New proposed image processing methods, and known methods are designed. Also determination the methods of effectiveness are proposed. The numerical contrast coefficient of image for image processing efficiency is used in system. System can be used in many applications.
Ñèñòåìà ïðèçíà÷åíà äëÿ îáðîáêè ñëàáîêîíòðàñòíèõ çîáðàæåíü ³ ìîæå áóòè âèêîðèñòàíà äëÿ ðîçðîáêè íîâèõ ìåòîä³â.  ñèñòåì³ ðåàë³çîâàí³ â³äîì³ òà íîâ³ ìåòîäè îáðîáêè. Çàïðîïîíîâàíî âèçíà÷àòè åôåêòèâí³ñòü ìåòîä³â, âèêîðèñòîâóþ÷è ÷èñëîâèé ïîêàçíèê - êîíòðàñòí³ñòü çîáðàæåííÿ. Ñèñòåìó ìîæíà çàñòîñîâóâàòè â ð³çíèõ ãàëóçÿõ.
ÓÄÊ 681.7:621.391
Ë. ². Ìóðàâñüêèé, Ì. Î. Ëèòâèí
ÎÖ²ÍÊÀ ÅÔÅÊÒÈÂÍÎÑÒ² ²ÄÅÍÒÈÔ²ÊÀÖ²¯ ÒÐÀÍÑÔÎÐÌÎÂÀÍÈÕ ÔÀÇÎÂÈÕ ÌÀÑÎÊ Â ÎÏÒÈÊÎ-ÖÈÔÐÎÂÎÌÓ ÏÐÈÑÒÐί
The evaluation of instrumental error for measuring of distances between correlation peaks in the first diffraction order of the optical digital device for identification of transformed phase masks is carried out.
Îö³íåíî ³íñòðóìåíòàëüí³ ïîõèáêè âèì³ðþâàííÿ â³ääàëåé ì³æ êîðåëÿö³éíèìè ï³êàìè ó ïåðøîìó ïîðÿäêó äèôðàêö³¿ îïòèêî-öèôðîâîãî ïðèñòðîþ ³äåíòèô³êàö³¿ òðàíñôîðìîâàíèõ ôàçîâèõ ìàñîê.
ÀËÃÎÐÈÒ̲×ÍÅ ÒÀ ÏÐÎÃÐÀÌÍÅ ÇÀÁÅÇÏÅ×ÅÍÍß
ÓÄÊ 518.5
Á. Î. Ïîïîâ, Ê. Â. Ñóùèê
ÄÎÑ˲ÄÆÅÍÍß ÇÁ²ÆÍÎÑÒ² ²ÒÅÐÀÖ²ÈÍβ ÏÐÎÖÅÄÓÐÈ ÄËß ÇÍÀÕÎÄÆÅÍÍß ÁÀËÀÍÑÍÎÃÎ ÍÀÁËÈÆÅÍÍß
Iterative formula for findind knots of balanced approximation by Chebyshev spline is proposed. Sufficient conditions of iterative procedure convergernce are derived.
Çàïðîïîíîâàíî ³òåðàö³éíó ôîðìóëó äëÿ çíàõîäæåííÿ âóçë³â áàëàíñíîãî íàáëèæåííÿ ÷åáèøîâ-ñüêèì ñïëàéíîì. Âèâåäåíà äîñòàòíÿ óìîâà çá³æíîñò³ ³òåðàö³éíî¿ ïðîöåäóðè.
ÓÄÊ 518.5:681.3
Ë. ². Êóæ³é, Á. ß. Îëåêñ³â
ÎÑÎÁËÈÂÎÑÒ² ÐÅÀ˲ÇÀÖ²¯ ÑÏËÀÉÍ-ÍÀÁËÈÆÅÍÜ ÇÀÑÎÁÀÌÈ ÎÄÍÎвÄÍÈÕ ÎÁ×ÈÑËÞÂÀËÜÍÈÕ ÑÅÐÅÄÎÂÈÙ
The outher's developed tools of the programming, paralleling, adjusting of the matrix multiprocessors systems and algorithmes of the chebeshov's spline-approximation are discusts. The conclusion about the efficiency of the such approches for syntheses matrix spline calculators are done.
Ðîçãëÿíóòî çàñîáè ïðîãðàìóâàííÿ, ðîçïàðàëåëþâàííÿ òà íàëàøòóâàííÿ ìàòðè÷íèõ áàãàòîïðîöåñîðíèõ ñèñòåì ³ àëãîðèòìè çíàõîäæåííÿ ÷åáèøîâñüêèõ ñïëàéí-íàáëèæåíü. Çðîáëåíî âèñíîâîê ïðî åôåêòèâí³ñòü îïðàöüîâàíèõ ï³äõîä³â äëÿ ñèíòåçó ìàòðè÷íèõ ñïëàéí-îá÷èñëþâà÷³â.
ÓÄÊ 621.317:681.325
Ð. Â. Ñåíüê³â, 3. Ì. Ñòð³ëåöüêèé
вÂÍÎ̲ÐÍÅ ËÎ¥ÀÐÈÔ̲×ÍÎ-ÏÎ˲ÍÎ̲ÀËÜÍÅ ÍÀÁËÈÆÅÍÍß ÔÓÍÊÖ²É
Is considered uniform Chebyshev's an approximation by nonlinear function. For this function the absolute and relative error is defined, the algorithm of a detennination of parameters of function is composed.
Ðîçãëÿíóòî ð³âíîì³ðíå ÷åáèøîâñüêå íàáëèæåííÿ íåë³í³éíîþ ôóíêö³ºþ. Äëÿ ö³º¿ ôóíêö³¿ âèçíà÷åíà àáñîëþòíà òà â³äíîñíà ïîõèáêè, ñêëàäåíî àëãîðèòì çíàõîäæåííÿ ïàðàìåòð³â ôóíêö³¿.
ÓÄÊ 621.391
Î. Î. Âàêóëüñüêèé, Ë. Â. Âàð³÷åíêî
ÎÁ×ÈÑËÅÍÍß ×ÈÑËÎÂί ÇÃÎÐÒÊÈ Ç ÂÈÊÎÐÈÑÒÀÍÍßÌ ÊÎÌÏËÅÊÑÍÈÕ ÒÅÎÐÅÒÈÊÎ-×ÈÑËÎÂÈÕ ÏÅÐÅÒÂÎÐÅÍÜ
Features of the complex theoretic-number transforms (CTNT) according to calculation of the digital convolutions have been considered. Lengths of digital sequences what allowing effective high-speed transformation algorithms and Algorithm for effective search of the CTNT's roots were obtained.
Ðîçãëÿíóòî âëàñòèâîñò³ êîìïëåêñíèõ òåîðåòèêî-÷èñëîâèõ ïåðåòâîðåíü äî çàäà÷³ îá÷èñëåííÿ öèôðîâî¿ çãîðòêè. Çíàéäåíî çíà÷åííÿ äîâæèí öèôðîâèõ ïîñë³äîâíîñòåé, äëÿ ÿêèõ ³ñíóþòü åôåêòèâí³ øâèäê³ àëãîðèòìè ïåðåòâîðåíü, òà àëãîðèòì ïîøóêó ïåðâ³ñíèõ êîðåí³â.
ÓÄÊ 681.3
Á. Ò. Äåðêà÷, Â. Ï. Êîæàí
²ÍÔÎÐÌÀÖ²ÉÍÎ-ÀÍÀ˲ÒÈ×ÍÀ ÑÈÑÒÅÌÀ "ÌÀÒÅвÀËÈ"
An approach to realization of information analytical system for handling video data is presented. Database of images of materials is described. Such database is an integral part of expert analytical system for recognition and analysis of space-time structure of materials.
Çàïðîïîíîâàíî ï³äõ³ä äî ðåàë³çàö³¿ ³íôîðìàö³éíî-àíàë³òè÷íî¿ ñèñòåìè äëÿ ðîáîòè ç â³äåîäàíèìè. Áàçà â³äåîäàíèõ çîáðàæåíü ìàòåð³àë³â îïèñàíà ÿê ñêëàäîâà ³íôîðìàö³éíî¿ åêñïåðòíî-àíàë³òè÷íî¿ ñèñòåìè îáðîáêè ðîçï³çíàâàííÿ òà àíàë³çó ïðîñòîðîâî-÷àñîâî¿ ñòðóêòóðè ìàòåð³àë³â.
ÅËÅÊÒÐÎÌÀÃͲÒÍÀ ÌÀÐÊÅÐÍÀ ÑÈÑÒÅÌÀ ÌÑ-2
Ñèñòåìà çàáåçïå÷óº òî÷íó ðîçì³òêó (ìàðêóâàííÿ) âçäîâæ îñ³ ï³äçåìíèõ êîìóí³êàö³é. Âîíà ñêëàäàºòüñÿ
³ç çàêîïàíèõ â ´ðóíò³ íàä êîìóí³êàö³ºþ åëåêòðîìàãí³òíèõ ìàðêåð³â ³ ïðèñòðîþ äëÿ ¿õ âèÿâëåííÿ.
ÏÐÈËÀÄ ÄËß ÏÎØÓÊÓ É ÎÁÑÒÅÆÅÍÍß ²ÇÎËßÖ²¯ ϲÄÇÅÌÍÈÕ ÊÀÁÅ˲ ² ÒÐÓÁÎÏÐÎÂÎIJ ²ÌÊ-4
Âèçíà÷ຠêîîðäèíàòè ³ ì³ñöÿ ïîøêîäæåííÿ ³çîëÿö³¿ ìàã³ñòðàëüíèõ íàôòî-, ãàçî- ³ ïðîäóêòîïðîâîä³â
òà ³íøèõ ï³äçåìíèõ êîìóí³êàö³é (êàáåë³â åëåêòðîïåðåäà÷, çâ'ÿçêó, òåëåêîìóí³êàö³é òà ³í. ), à òàêîæ çàáåçïå÷óº ìîæëèâ³ñòü
øâèäêîãî îáñòåæåííÿ òåðèòî𳿠ïåðåä ïðîâåäåííÿì çåìëÿíèõ ðîá³ò ç ìåòîþ âèÿâëåííÿ âêàçàíèõ êîìóí³êàö³é.
Ïîíîâëåíî: 10.02.2004