³äá³ð ³ îáðîáêà ³íôîðìàö³¿, ¹ 13, 1999
ÀÍÎÒÀÖ²¯
ÒÅÎÐ²ß ÏÎ˲ ÒÀ ÑÈÃÍÀË²Â Ó ÍÅÎÄÍÎвÄÍÈÕ ÑÅÐÅÄÎÂÈÙÀÕ
ÓÄÊ 620.179.18
Î. Á. Ëÿùóê
ÏÐßÌÀ É ÎÁÅÐÍÅÍÀ ÇÀÄÀײ ÐÀIJÎÕÂÈËÜÎÂί ÒÎÂÙÈÍÎÌÅÒв¯ ÄÂÎØÀÐÎÂÈÕ Ä²ÅËÅÊÒÐÈ×ÍÈÕ ÑÒÐÓÊÒÓÐ
The results of numerical solutions of direct and inverse problems radiowave determination of thicknessmetry of the two layers plane dielectric structures are presented. It has been illustrated in order to obtain the definite solution of thicknessmetry, when prior information is not enough and the range of possible variations thickness' is wide, it is necessary to solve the inverse problems. The effective multi-frequency method and algorithm for solution of inverse problems have been developed.
Âèêëàäåíî ðåçóëüòàòè ÷èñëîâîãî ðîçâ'ÿçóâàííÿ ïðÿìî¿ é îáåðíåíî¿ çàäà÷ ðàä³îõâèëüîâî¿ òîâùèíîìåò𳿠äâîøàðîâèõ ä³åëåêòðè÷íèõ ñòðóêòóð ç ïëîñêèìè ãðàíèöÿìè ðîçä³ëó. Ïîêàçàíî, ùî äëÿ îäíîçíà÷íîãî êîíòðîëþ òîâùèíè çà ìàëî¿ anpiopío¿ ³íôîðìàö³¿ i øèðîêî¿ îáëàñò³ çì³íè òîâùèíè íåîáõ³äíî ðîçâ'ÿçóâàòè îáåðíåíó çàäà÷ó. Ðîçãëÿíóòî åôåêòèâíèé ìåòîä i àëãîðèòì áàãàòî÷àñòîòíîãî ðîçâ'ÿçêó îáåðíåíî¿ çàäà÷³.
ÓÄÊ 551.568.85
Î. Á. Ëÿùóê, 3. Ò. Íàçàð÷óê, Â. Ð. Äæàëà
ÍβÒͲ ÌÅÒÎÄÈ É ÀÏÀÐÀÒÓÐÀ ÐÀIJÎÕÂÈËÜÎÂί IJÀÃÍÎÑÒÈÊÈ ÁÀÃÀÒÎØÀÐÎÂÈÕ Ä²ÅËÅÊÒÐÈʲÂ
The perspectiv methods and devices of racliowave SHF thicknessmetry, defectoscopy, defectometry and structurometry for diagnostics and nondestructive testing of multilayers dielectric materials are considered.
Ðîçãëÿíóòî ïåðñïåêòèâí³ ìåòîäè é àïàðàòóðó ðàä³îõâèëüîâî¿ íàäâèñîêî÷àñòîòíî¿ òîâùèíîìåò𳿠(ÍÂ×), äåôåêòîñêîﳿ i äåôåêòîìåò𳿠äëÿ ðîçâ'ÿçóâàííÿ çàäà÷ ä³àãíîñòèêè òà íåðóéí³âíîãî êîíòðîëþ áàãàòîøàðîâèõ ä³åëåêòðè÷íèõ ìàòåð³àë³â.
ÓÄÊ 620.179.14
À. ß. Òåòåðêî, Â. ² Ãóòíèê
ÌÎÄÅËÜ ÅËÅÊÒÐÎÌÀÃͲÒÍÎÃÎ ÏÎËß ÄÅÔÅÊÒÓ ÒÈÏÓ ÏÎÇÄÎÂÆÍÜί ÒвÙÈÍÈ
On the longe wave approximation base of the electromagnetic field of the longitudinal crack that is in the conducting half-space has been ivestigated. The model of a crack has been imitated with linear syperposition of the cylindrical reflector terms. The conditions of the crack paramerers determination of NDT Eddy current method has been defined.
Ha ocíoâi äîâãîõâèëüîâî¿ àïðîêñèìàö³¿ äîñë³äæåíî åëåêòðîìàãí³òíå ïîëå ïîçäîâæíüî¿ òð³ùèíè, ùî ì³ñòèòüñÿ â åëåêòðîïðîâ³äíîìó ï³âïðîñòîð³. Ìîäåëü òð³ùèíè çîáðàæåíî ë³í³éíîþ ñóïåðïîçèö³ºþ åëåìåíòàðíèõ öèë³íäðè÷íèõ â³äáèâà÷³â. Âèÿâëåíî óìîâè, íåîáõ³äí³ äëÿ ðîçâ'ÿçóâàííÿ çàäà÷ äeôeêòoìeòpii ï³ä ÷àñ êîíòðîëþ òð³ùèí âèõðîñòðóìîâèì íåðóéí³âíèì ìåòîäîì.
ÓÄÊ 550.388.2
Â. Â. Êîøîâèé, Î. Ë. ²âàíòèøèí
ÄÎÑ˲ÄÆÅÍÍß ØÒÓ×ÍÈÕ ÀÊÓÑÒÎ-²ÎÍÎÑÔÅÐÍÈÕ ÇÁÓÐÅÍÜ ÐÀIJÎÀÑÒÐÎÍÎ̲×ÍÈÌ ÌÅÒÎÄÎÌ
The ionospheric effects connected with acoustic waves from ground based acoustic radiator and that have been studied by radio astronomical method on the base of radio telescope URAN-3 are presented. The investigation of artificial ionosphere effects by radio astronomical method is based on the measuring of intensity of the radio noise from cosmic radio sources.
Ðàä³îàñòðîíîì³÷íèì ìåòîäîì, ðåàë³çîâàíèì íà áaçi ÊÕ-ðàä³îòåëåñêîïà ÓÐÀÍ-3, âèÿâëåíî é çàðåºñòðîâàíî ñëàáê³ àêóñòî-³îíîñôåðí³ çáóðåííÿ, ñïðè÷èíåí³ àòìîñôåðíîþ àêóñòè÷íîþ õâèëåþ, ÿêà çãåíåðîâàíà íàçåìíèì êåðîâàíèì àêóñòè÷íèì âèïðîì³íþâà÷åì. ßê çîíäóþ÷³ âèêîðèñòîâóâàëè ñèãíàëè ðàä³îâèïðîì³íþâàííÿ äèñêðåòíèõ êîñì³÷íèõ ðàä³îäæåðåë.
ÌÀÒÅÌÀÒÈ×Ͳ ÌÎÄÅ˲ ÑÈÃÍÀ˲ ÒÀ ÑÈÑÒÅÌ
ÓÄÊ 621.77(088.8)
Î. Ï. Äðàáè÷, Â. Þ. Ìèõàéëèøèí, ². M. ßâîðñüêèé
ÂÈßÂËÅÍÍß ÐÅÃÓËßÐÍÈÕ ÏÅвÎÄÈ×ÍÈÕ ÇÌ²Í ÑÈÃÍÀËÓ É ÎÖ²ÍÞÂÀÍÍß ¯X ÏÅвÎÄÓ
Properties of correlation period estimators using Fourier transform of realization of periodically non-stationary signals are considered. Expressions for estimators bias and variance depending on realization length and parameters of typical signals are obtained in first approximation.
Íàâåäåíî âëàñòèâîñò³ îö³íîê ïåð³îäó êîðåëüîâàíîñò³, ÿê³ âèêîðèñòîâóþòú ïåðåòâîðåííÿ Ôóð'º peaëiçaöié ïåð³îäè÷íèõ íåñòàö³îíàðíèõ ñèãíàë³â. Îòðèìàíî â ïåðøîìó íàáëèæåíí³ âèðàçè äëÿ çì³ùåííÿ òà äèñïåðñ³¿ îö³íîê çàëåæíî âiä äîâæèíè ðåàë³çàö³¿ òà ïàðàìåòð³â òèïîâèõ ñèãíàë³â.
ÓÄÊ 621.391: 519.22
I. Ì. ßâîðñüêèé, I. Þ. ²ñàåâ, ß. Ìàºâñê³
ÂËÀÑÒÈÂÎÑÒ² ÊÎÌÏÎÍÅÍÒÍÈÕ ÎÖ²ÍÎÊ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ÍÅÑÒÀÖ²ÎÍÀÐÍÈÕ ÀÌÏ˲ÒÓÄÍÎ-ÌÎÄÓËÜÎÂÀÍÈÕ ÑÈÃÍÀ˲Â
The properties of mean and correlation function component estimates of amplitude modulated non-stationary signals are described. These estimates are built on the basis of characteristic Fourier component estimates. The dependencies of biases and variances on parameters of stationary modulating signals probabilistic characteristics are received. The influence on estimation accuracy of signal non-stationary characteristics is analysed.
Ïðîàíàë³çîâàíî âïëèâ òî÷íîñò³ îö³íþâàííÿ íà íåñòàö³îíàðí³ õàðàêòåðèñòèêè ñèãíàëó. Îïèñàí³ âëàñòèâîñò³ îö³íîê ìàòåìàòè÷íîãî ñïîä³âàííÿ òà êîðåëÿö³éíî¿ ôóíêö³¿ íåñòàö³îíàðíèõ àìïë³òóäíî-ìîäóëüîâàíèõ ñèãíàë³â. Ö³ îö³íêè áóäóþòüñÿ íà îñíîâ³ îö³íîê õàðàêòåðèñòèê êîìïîíåíò³â Ôóð'º. Îòðèìàíî çàëåæíîñò³ çì³ùåííÿ i äèñïåðci¿ â³ä ïàðàìåòð³â ³ìîâ³ðí³ñíèõ õàðàêòåðèñòèê ñòàö³îíàðíèõ âèïàäêîâèõ ñèãíàë³â.
ÓÄÊ 621.372.542
Â. Î. Ïîãð³áíèé, À. Ðàéñ
ÏÀÐÀÌÅÒÐÈ É ÀËÃÎÐÈÒÌÈ ÄÅËÜÒÀ-ÌÎÄÓËßÖ²¯ Ç ÊÐÎÊÀÌÈ ÊÂÀÍÒÓÂÀÍÍß Ç Ä²ÉÊÎÂί ÃÅÎÌÅÒÐÈ×Íί ÏÐÎÃÐÅѲ¯
The results of the research on the optimization of the algorithms for the operation of the coders of the Adaptive Delta Modulation (ADM) and DPCM with the use of quantization steps with multiplication factor equal to power 2 have been presented. Such steps relate to highly economical codes which require very simple mathematical operations.
Ðîçãëÿíóòî ìåòîäè îïòèì³çàö³¿ àëãîðèòì³â àäàïòèâíî¿ äåëúòà-ìîäóëÿö³¿ òà äèôåðåíö³éíî¿ ³ìïóëüñíî-êîäîâî¿ ìîäóëÿö³¿ ç êðîêàìè êâàíòóâàííÿ ç äâ³éêîâî¿ ãåîìåòðè÷íî¿ nporpeci¿ ö³ëèõ ÷èñåë. Âèêîðèñòàííÿ òàêèõ êðîê³â âåäå äî ïðîñòèõ îïåðàö³é íàä â³äïîâ³äíèìè êîäàìè. Ïîõèáêè àïðîêñèìàö³¿ äîñë³äæåíî ç äîïîìîãîþ ðîçðîáëåíèõ ïðîãðàì êîìï'þòåðíî¿ ñèìóëÿö³¿.
ÓÄÊ 621.314: 621.396.66
Â. Î. Ïîãð³áíèé, I. Â. Ðîæàíê³âñüêèé, ß. Â. Ãðåíü
в3ÍÈÖÅÂÈÉ ÊÎÐÅËßÖ²ÉÍÎ-ÑÏÅÊÒÐÀËÜÍÈÉ ÀÍÀ˲3 ÍÅÑÒÀÖ²ÎÍÀÐÍÈÕ Â²ÁÐÀÖ²É
In this paper we offer a new improved algorithm of choice the intervals of local-stationarity. The algorithm is oriented on a measurement of non-stationary vibrations of rotation mechanisms. We also offer new difference methods of the correlation and spectral analyses for research of these vibrations.
Çàïðîïîíîâàíî íîâèé âäîñêîíàëåíèé àëãîðèòì âèáîðó ä³ëÿíîê ëîêàëüíî¿ ñòàö³îíàðíîñò³. Àëãîðèòì îð³ºíòîâàíèé íà âèì³ðþâàííÿ íåñòàö³îíàðíèõ â³áðàö³é îáåðòîâèõ ìåõàí³çì³â. Ïîäàíî íîâ³ ð³çíèöåâ³ ìåòîäè êîðåëÿö³éíîãî òà ñïåêòðàëüíîãî àíàë³ç³â äëÿ äîñë³äæåííÿ öèõ â³áðàö³é.
ÓÄÊ 681.142: 621.376.57
². Ä. Çåë³íñüêèé
ÂÈÊÎÐÈÑÒÀÍÍß Ä²ÊÌ-ÅÊÑÒÐÅÌÀËÜÍÎÃÎ ÀÍÀ˲ÇÓ ÄËß ÑÒÈÑÊÓ ÄÀÍÈÕ
In this work an extreme analysis for the compression of one- and two-dimensional data arrays are proposed. The Analysis methods on the base of Differential Pulsed-Code Modulation (DPCM) are considered. Errors of extreme analysis are explored. Authors also proposed structure of extreme analyzer based on the DPCM.
Çàïðîïîíîâàíî ìåòîä ñòèñêó äàíèõ ç äîïîìîãîþ åêñòðåìàëüíîãî aíaëiçy íà ocíoâi äèôåðåíö³éíî¿ ³ìïóëüñíî-êîäîâî¿ ìîäóëÿö³¿. Ðîçãëÿíóòî ïîõèáêè òàêîãî àíàë³çó. Ïîäàíî ñòðóêòóðó åêñòðåìàëüíîãî àíàë³çàòîðà ç âèêîðèñòàííÿì äèôåðåíö³éíî¿ ³ìïóëüñíî-êîäîâî¿ ìîäóëÿö³¿.
ÓÄÊ 621.372:519.517
À. À. Ëóêåíþê, Ì. Ì. ßöèì³ðñüêèé
ÊÎÌÁ²ÍÎÂÀͲ ØÂÈÄʲ ÀËÃÎÐÈÒÌÈ ÎÐÒÎÃÎÍÀËÜÍÈÕ ÏÅÐÅÒÂÎÐÅÍÜ ÄËß ÇÀÄÀ× ÊÎÄÓÂÀÍÍß ÑÈÃÍÀ˲Â
Offered new scheme of building of algorithms of quick cosine transformation. Synthesized graph of such algorithm, detected intercouplmg a discrete cosine transformation, transformations Haar and Walsh-Hadamard.
Çàïðîïîíîâàíà íîâà ñõåìà ïîáóäîâè àëãîðèòì³â øâèäêîãî êîñèíóñíîãî ïåðåòâîðåííÿ. Ñèíòåçîâàíèé ãðàô òàêîãî àëãîðèòìó, ðîçêðèòèé âçàºìíèé çâ'ÿçîê äèñêðåòíîãî êîñèíóñíîãî ïåðåòâîðåííÿ, ïåðåòâîðåíü Õààðà i Óîëøà-Àäàìàðà.
ÓÄÊ 62.519
Á. ª. Ðèöàð
ÌÅÒÎÄ ÄÅÊÎÌÏÎÇÈÖ²¯ ×ÀÑÒÊÎÂÈÕ ÁÓËÎÂÈÕ ÔÓÍÊÖ²É
A decomposition method of undefined Boolean functions of n variables is based on the procedure of the q-partition of the given minterms. Comparing with traditional ones, proposed algorithm of decomposition is more simple in realization. The example of practical use of this method are illustrated.
Ðîçãëÿíóòî ìåòîä äåêîìïîçèö³¿ ÷àñòêîâèõ áóëîâèõ ôóíêö³é ï çì³ííèõ, ùî Ãðóíòóºòüñÿ íà ïðîöåäóð³ q-ðîçáèòòÿ çàäàíèõ ì³íòåðì³â. Ïîð³âíÿíî ç òðàäèö³éíèìè ìåòîäàìè çàïðîïîíîâàíèé àëãîðèòì äåêîìïîçèö³¿ ïðîñò³øå ðåàë³çóâàòè. Íàâåäåíî ïðèêëàä ïðàêòè÷íîãî çàñòîñóâàííÿ ìåòîäó.
ÓÄÊ 621.396.9
Â. Ï. Áåëÿºâ, Á. Þ. Âîëî÷³é, À. Â. Ãðàá÷àê, Ì. Â. ̳ñüê³â, Ë. Ä. Îç³ðêîâñüêèé
ÌÎÄÅËÞÂÀÍÍß ÒÀ ÎÖ²ÍÊÀ ÅÔÅÊÒÈÂÍÎÑÒ² ËÎÊÀËÜÍÎÃÎ ÐÀIJÎÅËÅÊÒÐÎÍÍÎÃÎ ÊÎÌÏËÅÊÑÓ
A concept of designing technique of mathematical model of a radioelectronic complex with automated interaction among a radioengineering systems is submitted in article. The results of analysis of parameters of efficiency are shown. Analysis has been done with different value of parameters of individual subsystems.
Âèêëàäåíî êîíöåïö³þ ìåòîäèêè ïîáóäîâè ìàòåìàòè÷íî¿ ìîäåë³ ðàä³îåëåêòðîííîãî êîìïëåêñó ç àâòîìàòèçîâàíîþ âçàºìî䳺þ ðàä³îòåõí³÷íèõ ñèñòåì. Ïîäàíî ðåçóëüòàòè àíàë³çó ïîêàçíèê³â åôåêòèâíîñò³ êîìïëåêñó ïðè ð³çíèõ çíà÷åíèÿõ ïàðàìåòpiâ îêðåìèõ ñèñòåì.
ÓÄÊ 621.317.08
Ï. Ñ. ªâòóõ
ÌÎÄÅËÜ ÑÈÃÍÀËÓ Â ÇÀÑÎÁÀÕ ÂÈßÂËÅÍÍß ÒÎÊÑÈ×ÍÈÕ ÇÀÁÐÓÄÍÈʲ ÂÎÄÍÈÕ ÑÅÐÅÄÎÂÈÙ ÌÅÒÎÄÎÌ Á²ÎÒÅÑÒÓÂÀÍÍß
The signal model for detection equipment of such water environment poison pollution which can't be detected by known methods and equipment is proposed.
Çàïðîïîíîâàíà ìîäåëü ñèãíàëó äëÿ çàñîá³â âèÿâëåííÿ òàêèõ òîêñè÷íèõ çàáðóäíåíü âîäíèõ ñåðåäîâèù, ÿê³ ³ñíóþ÷èìè ìåòîäàìè òà çàñîáàìè íå ô³êñóþòüñÿ.
ÓÄÊ 621.372
Â. Ì. Çàÿöü
ÀÍÀ˲3 ÊÎÌÏ'ÞÒÅÐÍÈÕ ÌÎÄÅËÅÉ ÄÈÑÊÐÅÒÍÈÕ ÊÎËÈÂÀËÜÍÈÕ ÑÈÑÒÅÌ
The models of discrete vibration systems is proposed for created signals with different characteristics. Existence harmonica³ and modulation signals of different amplitude is
Çàïðîïîíîâàíî ìîäåë³ äèñêðåòíèõ êîëèâàëüíèõ ñèñòåì, ÿêi äîçâîëÿþòü øëÿõîì çì³íè ¿x ïàðàìåòð³â îòðèìóâàòè êîëèâàííÿ piçíoão õàðàêòåðó. ϳäòâåðäæåíà ìîæëèâ³ñòü ³ñíóâàííÿ â íèõ ÿê ãàðìîí³÷íèõ, òàê i ìîäóëüîâàíèõ êîëèâàíü p³çíoão ïîðÿäêó êðàòíîñò³.
ÓÄÊ 629.7+519.57
À. Î. Ñòîñèê, Ð. Î. Çàáðîäñüêèé
ÌÀÒÅÌÀÒÈ×ÍÀ ÌÎÄÅËÜ ÎÑÖÈËßÖ²ÉÍί ÍÅÉÐÎÍÍί ÌÅÐÅƲ ÍÀ OCHOBI ÄÈÍÀ̲×ÍÈÕ ÑÈÑÒÅÌ 3 ÏÀÑÒÊÀÌÈ
The mathematical model of the oscillatory neural network with dynamical systems of some special type has been considered. Such dynamical systems due to these non-linearities have a high region of subcritical bifurcation. The possible dynamics of such networks has been analyzed.
Ðîçãëÿíóòà ìàòåìàòè÷íà ìîäåëü îñöèëÿö³éíî¿ íåéðîííî¿ ìåðåæ³ íà ocíoâi äèíàì³÷íèõ ñèñòåì ç ïåâíèì òèïîì íóëü-³çîêëèí. Ó òàêèõ ñèñòåìàõ îáëàñòü äîêðèòè÷íîñò³ ñóòòºâî çá³ëüøåíî çà ðàõóíîê îñîáëèâîñòåé â ¿¿ íåë³í³éíîñòÿõ. Ïðîàíàë³çîâàíî äèíàì³êó ðîáîòè òàêî¿ íåéðîìåðåæ³.
ÎÁÐÎÁÊÀ ÂÈ̲ÐÞÂÀËÜÍί ²ÍÔÎÐÌÀÖ²¯
ÓÄÊ 518.5
P. À. Âîðîáåëü, ß. Â. Ãàïîíþê, Á. Î. Ïîïîâ
ÀÏÐÎÊÑÈÌÀÖ²ÉͲ ÌÅÒÎÄÈ ÐÅÀ˲3ÀÖ²¯ ÅÊÑÏÎÍÅÍÖ²ÉÍÈÕ ÏÅÐÅÒÂÎÐÅÍÜ ÄÂÎÂÈ̲ÐÍÈÕ ÑÈÃÍÀ˲Â
There are considered the theorem, which gives the possibility to simplify the exponential approximation functions calculation and to decrease parameters finding time in the case of few parameters quantity for the relative non-linear characteristic approximation. Technique for synthesis and evaluation characteristics digital-frequences exponential approximators are described.
Ðîçãëÿíóòî ìåòîäèêó, ÿêà äຠìîæëèâ³ñòü ñïðîñòèòè ðîçðàõóíîê åêñïîíåíö³éíèõ àïðîêñèìóâàëüíèõ âèðàç³â òà ñóòòºâî ñêîðîòèòè ÷àñ çíàõîäæåííÿ ¿x ïàðàìåòð³â (çà íåâåëèêî¿ ê³ëüêîñò³) äëÿ â³äíîñíîãî íàáëèæåííÿ íåë³í³éíèõ ïåðåäàâàëüíèõ õàðàêòåðèñòèê ñèñòåì. Ïîäàíî ìåòîäèêó ñèíòåçó òà îö³íêè õàðàêòåðèñòèê öèôðî-÷àñòîòíèõ åêñïîíåíö³éíèõ àïðîêñèìàòîð³â.
ÓÄÊ 621.317
Ì. Ì. Äîðîæîâåöü
ÄÎÑ˲ÄÆÅÍÍß ²ÍÑÒÐÓÌÅÍÒÀËÜÍί ÏÎÕÈÁÊÈ Â²ÄÒÂÎÐÅÍÍß ÒÅÌÏÅÐÀÒÓÐÈ ÀÊÓÑÒÈ×ÍÈÌ ÒÎÌÎÃÐÀÔ²×ÍÈÌ ÌÅÒÎÄÎÌ
In the article instrumental errors of an temperature image reconstruction by acoustic tomography method are investigated. Expressions for reconstruction errors and their numerical characteristics depending on measured errors of time intervals are obtained. Results of experimental valuation of these errors are illustrated.
Äîñë³äæåíî ³íñòðóìåíòàëüí³ ïîõèáêè â³äòâîðåííÿ îáðàçó òåìïåðàòóðè àêóñòè÷íèì òîìîãðàô³÷íèì ìåòîäîì. Îòðèìàíî âèðàçè äëÿ ïîõèáîê, à òàêîæ ¿x ÷èñëîâ³ õàðàêòåðèñòèêè çàëåæíî â³ä ïîõèáîê âèì³ðþâàííÿ ³íòåðâàë³â ÷àñó. Íàâåäåíî ðåçóëüòàòè åêñïåðèìåíòàëüíîãî îö³íþâàííÿ öèõ ïîõèáîê.
ÓÄÊ 621.376.56
Î. Â. Òèì÷åíêî
ÎÏÒÈÌÀËÜÍÀ ×ÀÑÒÎÒÀ ÄÈÑÊÐÅÒÈÇÀÖ²¯ ÄËß Ð²3ÍÈÖÅÂÈÕ ÌÅÒÎIJ ÖÈÔÐÎÂί ÍÅÐÅÊÓÐÑÈÂÍί Ô²ËÜÒÐÀÖ²¯
The method of finding of the minimal counting frequency in a digital filtering on a basis of differential methods is given at the programmed resolution for minimisation of volume of the processor on homogeneous computing media.
Ïîäàíî ìåòîä çíàõîäæåííÿ ì³í³ìàëüíî¿ ÷àñòîòè äèñêðåòèçàö³¿ â öèôðîâ³é ô³ëüòðàö³¿ íà îñíîâ³ ð³çíèöåâèõ ìåòîä³â ïðè çàäàí³é ðîçä³ëüí³é çäàòíîñò³ äëÿ ì³í³ì³çàö³¿ îá'ºìó ïðîöåñîðà íà îäíîð³äíèõ îá÷èñëþâàëüíèõ ñåðåäîâèùàõ.
ÓÄÊ 621.77(088.8)
Ï. Ï. Äðàáè÷
ÑÈÍÒÅÇ ÖÈÔÐÎÂÈÕ ÑÒÎÕÀÑÒÈ×ÍÈÕ ÏÐÈÑÒÐί ÄËß ÎÁ×ÈÑËÅÍÍß ÒÀ ÔÓÍÊÖ²ÎÍÀËÜÍÎÃÎ ÏÅÐÅÒÂÎÐÅÍÍß ÎÖ²ÍÎÊ ÏÀÐÀÌÅÒв ÂÈÏÀÄÊÎÂÈÕ ÑÈÃÍÀ˲Â
Principles of construction and analysis of digital stochastic converters of parameter estimates of random processes on the basis of recurrence ratio in the form of differential and difference equations using converters code-prohability as feedback elements are stated.
Âèêëàäåíî ïðèíöèïè ïîáóäîâè é àíàë³ç öèôðîâèõ ñòîõàñòè÷íèõ ïåðåòâîðþâà÷³â îö³íîê ïàðàìåòð³â âèïàäêîâèõ ïðîöåñ³â íà îñíîâ³ ðåêóðåíòíèõ ñï³ââ³äíîøåíü ó âèãëÿä³ äèôåðåíö³éíèõ òà ð³çíèöåâèõ ð³âíÿíü ç âèêîðèñòàííÿì ïåðåòâîðþâà÷³â êîä-éìîâ³ðí³ñòü ÿê åëåìåíò³â îáåðíåíîãî çâ'ÿçêó.
ÓÄÊ 681.518:621.314.26:534.2
Â. Ä. Ïîãðåáåííèê
ÎÏÒÈ̲ÇÀÖ²ß ÂÈÁÎÐÓ ÏÀÐÀÌÅÒв ÓËÜÒÐÀÇÂÓÊÎÂÎÃÎ ÊÎÍÖÅÍÒÐÀÒÎ̲ÐÀ вÄÈÍ
The classification of ultrasonic systems for control of liquid is considered. The optimization of choice of parameters of ultrasonic device for measurement of liquid's concentration is performed.
Çàïðîïîíîâàíî êëàñèô³êàö³þ óëüòðàçâóêîâèõ ñèñòåì êîíòðîëþ ð³äèí. Îïòèì³çîâàíî âèá³ð napaìeòpiâ óëüòðàçâóêîâîãî êîíöåíòðàòîì³ðà ð³äèí.
ÓÄÊ 621.317.39:533.27
À. Á. Ëîçèíñüêèé, Â. Î. ͳ÷îãà, Ã. Ð. Òðîõèì, Î. ². Òðóø
ÄÎÑ˲ÄÆÅÍÍß ÌÅÒÎIJ ÂÈ̲ÐÞÂÀÍÍß ÂÎËÎÃÎÑÒ² ÒÞÒÞÍÓ ÇÀ Ç̲ÍÎÞ ÅËÅÊÒÐÎÔ²3È×ÍÈÕ ÏÀÐÀÌÅÒвÂ
The method of tobacco humidity measurement has been worked out. Block diagrams of measuring devices and obtained results of humidity measurements are shown.
Ðîçðîáëåíî ìåòîä âèì³ðþâàííÿ âîëîãocòi òþòþíó. Íàâåäåíî áëîê-ñõåìè âèìipþâàëüíèõ ïðèñòðî¿â òà ðåçóëüòàòè äîñë³äæåíü.
ÓÄÊ 574.5:517.974
Î. Ï. Áóõàëî, Â. Ä. Áàéñà, Â. Â. Êîøîâèé, Â. Â.Ïàíàñþê, ² Ì. Ðîìàíèøèí, Î. ² Öèõàí
̲ÃÐÀÖ²ß ÐÀIJÎÍÓÊ˲IJ ÍÀ ÒÅÐÈÒÎв¯ ØÀÖÜÊÎÃÎ ÍÀÖ²ÎÍÀËÜÍÎÃÎ ÏÐÈÐÎÄÍÎÃÎ ÏÀÐÊÓ
Some approaches to creation of radionuclides migration model on Shatsk National Nature Park territory is regarded. The results of an experimental estimations of radiation situation are also presented.
Ðîçãëÿíóòî äåÿê³ ï³äõîäè äî ñòâîðåííÿ ìîäåëåé ì³ãðàö³¿ ðàä³îíóêë³ä³â íà òåðèòîpi¿ Øàöüêîãî Íàö³îíàëüíîãî ïàðêó òà íàâåäåíî ðåçóëüòàòè åêñïåðèìåíòàëüíèõ îö³íîê paäiaöiéíî¿ ñèòóàö³¿.
ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ ÒÀ ÂϲÇÍÀÂÀÍÍß ÎÁÐÀ3²Â
ÓÄÊ 535.8:621.382
Ë. I. Ìóðàâñüêèé
ÎÖ²ÍÊÀ вÂÍß ÑÏÎÒÂÎÐÅÍÍß Á²ÍÀÐÍÈÕ ÇÎÁÐÀÆÅÍÜ Ï²Ä ×ÀÑ ¯Õ ÄÈÑÊÐÅÒÈÇÀÖ²¯  ÎÏÒÈÊÎ-ÖÈÔÐÎÂ²É ÑÈÑÒÅ̲
Peculiarities of a binary image processing in a hybrid optical-digital system are considered. The binary image power spectrum criteria based on comparison of the whole spectral power with the high-frequency spectral band power is used for estimation of a sampled image distortions. Influence of an optical transfer function and a size of a pixel in pixel arrays on a sampled binary image distortion is studied.
Ðîçãëÿíóòî îñîáëèâîñò³ îáðîáêè á³íàðíèõ çîáðàæåíü â îïòèêî-öèôðîâ³é ñèñòåì³. Äëÿ îö³íêè ð³âíÿ ñïîòâîðåíü äèñêðåòèçîâàíîãî çîáðàæåííÿ ïîð³âíÿíî ïîâíó åíåðãiþ éîãî ñïåêòðà ç åíåð㳺þ âèñîêî÷àñòîòíî¿ ñìóãè öüîãî ñïåêòðà. Äîñë³äæåíî âïëèâ îïòè÷íî¿ ïåðåäàâàëüíî¿ ôóíêö³¿ òà poçìipiâ ï³êñåë³â ìàòðè÷íîãî â³äåîñåíñîðà íà ð³âåíü ñïîòâîðåíü á³íàðíîãî çîáðàæåííÿ ï³ä ÷àñ éîãî äèñêðåòèçàö³¿.
ÓÄÊ 681.7.013.82
Ò. ². Âîðîíÿê, Ë. ². Ìóðàâñüêèé, Ð. Ñ. Áà÷åâñüêèé
ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ ÏÐÈÑÒÐÎßÌÈ ÍÀ ÎÑÍβ ÔÎÒÎÀͲÇÎÒÐÎÏÍÈÕ ÐŪÑÒÐÓÂÀËÜÍÈÕ ÌÀÒÅвÀ˲Â
The uncoherent polarization method of image processing using reversive photoanisotropic recording materials is presented. The general characteristcs of photoanisotropic materials and the optical scheme of image processing device are given. This scheme allows to use photoanisotropic materials for large format image processing. The functioning principle of such device is described.
Ðîçãëÿíóòî íåêîãåðåíòíèé ïîëÿðèçàö³éíèé ìåòîä îáðîáêè çîáðàæåíü ç çàñòîñóâàííÿì ðåâåðñèâíèõ ôîòîàí³çîòðîïíèõ ðåºñòðóâàëüíèõ ìàòåð³àë³â. Íàâåäåíî îïòè÷íó ñõåìó ïðèñòðîþ îáðîáêè çîáðàæåíü, ÿêà äîçâîëÿº âèêîðèñòàòè çíà÷í³ ïîòåíö³éí³ ìîæëèâîñò³ òàêèõ ìaòepiaëiâ äëÿ îáðîáêè øèðîêîôîðìàòíèõ âèñîêî³íôîðìàòèâíèõ çîáðàæåíü.
ÓÄÊ 535.241.13
Ò.². Âîðîíÿê
ÂÈÊÎÐÈÑÒÀÍÍß ÔÎÒÎÀͲÇÎÒÐÎÏÍÈÕ ÐŪÑÒÐÓÂÀËÜÍÈÕ ÌÀÒÅвÀË²Â Ó ÊÎÐÅËßÒÎÐÀÕ ÑÓ̲ÑÍÎÃÎ ÔÓÐ'ª-ÏÅÐÅÒÂÎÐÅÍÍß
The results of experimental investigation of photoanisotropic recording materials are represented. The possibility and necessity of these materials using both in joint Fourier transform correlators and other correlators types are analysed.The optical schemes of unit for experimental investigation of photoanisotropic recording materials and joint Fourier transform correlator are submitted.
Ïîäàíî ðåçóëüòàòè åêñïåðèìåíòàëüíèõ äîñë³äæåíü ôîòîàí³çîòðîïíèõ ðåºñòðóâàëüíèõ ìaòepiaëiâ. Ïðîàíàë³çîâàíî ìîæëèâ³ñòü òà äîö³ëüí³ñòü âèêîðèñòàííÿ öèõ ìàòepiaëiâ ó êîðåëÿòîðàõ cyìicíoro Ôóð'º-ïåðåòâîðåííÿ òà êîðåëÿòîðàõ iíøèx òèï³â. Íàâåäåíî îïòè÷íó ñõåìó êîðåëÿòîðà ñóì³ñíîãî Ôóð'º-ïåðåòâîðåííÿ ç ôîòîàí³çîòðîïíèì ìàòåð³àëîì ó ñïåêòðàëüí³é oáëacòi ïðîñòîðó.
ÓÄÊ 621.325
Í. Â. Îïèð
ÇÀËÅÆͲÑÒÜ ÏÎÐÎÃÀ ×ÓÒËÈÂÎÑÒ² Â²Ä ÂÈÁÎÐÓ ÔÓÍÊÖ²¯ ÏÅÐÅÒÂÎÐÅÍÍß PIBHI ßÑÊÐÀÂÎÑÒ²-²HTEHCÈBH²CTb
The method of defining of just noticeable difference of visual perception of image, which is depend on S-likely function of gray level - intensity is offered. There are some this function, and its parameters, which can be use for creating computer algorithms.
Çàïðîïîíîâàíî ìåòîäèêó âèçíà÷åííÿ ïîðîãà ÷óòëèâîñò³ â³çóàëüíîãî ñïðèéíÿòòÿ çîáðàæåííÿ çàëåæíî â³ä âèáîðó S-ïîä³áíî¿ ôóíêö³¿ piâíi ÿñêðàâîñò³—³íòåíñèâí³ñòü. Íàâåäåíî äåÿê³ òàê³ ôóíêö³¿ òà ¿x ïàðàìåòðè, ÿê³ ìîæíà âèêîðèñòîâóâàòè ïðè ñòâîðåíí³ îá÷èñëþâàëüíèõ àëãîðèòì³â.
ÓÄÊ 621.391
Þ. Á. Ðèöàð
ÀÄÀÏÒÈÂÍÈÉ ²ÄÅÍÒÈÔ²ÊÀÖ²ÉÍÈÉ ÀËÃÎÐÈÒÌ ÓÑÓÍÅÍÍß ²ÌÏÓËÜÑÍÈÕ ØÓ̲ Dz ÇÎÁÐÀÆÅÍÜ
A new efficient technique for impulsive noise removal is presented. The filtering scheme consists of the global histogram analysis part to detect impulse corrupted pixels and the local substitution of identified pixels by spatial modified order statistic values computed around these pixels. The comparative analysis with known adaptive identification techniques demonstrates the advantages of the proposed approach for effective noise removal while preserving edges and fine details. The mathematical simplicity and low computational load make the proposed approach very attractive for impulsive noise removal in digital images.
Ðîçðîáëåíî íîâèé åôåêòèâíèé àëãîðèòì óñóíåííÿ ³ìïóëüñíèõ øóì³â. Ô³ëüòðàö³éíà ñõåìà ñêëàäàºòüñÿ ç äâîõ ÷àñòèí: aíaëiçy ãëîáàëüíî¿ ã³ñòîãðàìè çîáðàæåííÿ äëÿ âèÿâëåííÿ ï³êñåë³â, ïîøêîäæåíèõ ³ìïóëüñàìè, òà ïðîöåäóðè ëîêàëüíî¿ çàì³íè çäåòåêòîâàíèõ òî÷îê çîáðàæåííÿ çíà÷åííÿìè ìîäèô³êîâàíî¿ ïîðÿäêîâî¿ ñòàòèñòèêè, îá÷èñëåíî¿ ç îêîëó öèõ ï³êñåë³â. Ïîð³âíÿëüíèé aíaëiç ç â³äîìèìè àäàïòèâíèìè ³äåíòèô³êàö³éíèìè ô³ëüòðàìè ïîêàçóº ïåðåâàãè çàïðîïîíîâàíîãî ìåòîäó ïðè óñóíåíí³ ycix ³ìïóëüñ³â çi çîáðàæåííÿ i îäíî÷àñíîìó çáåðåæåíí³ êðà¿â òà äð³áíèõ äåòàëåé. ³í ïðîñòèé òà åôåêòèâíèé äëÿ ðîçâ'ÿçóâàííÿ çàäà÷ óñóíåííÿ iìïyëücíèx øóì³â ó öèôðîâèõ çîáðàæåííÿõ.
ÓÄÊ 621.319.837
Â. Ï. Áºëÿºâ, Ì. ² Êîáàñÿð, Á. Ï. Ðóñèí
ÂÈÊÎÐÈÑÒÀÍÍß ÂËÀÑÒÈÂÎÑÒÅÉ ÑÈÌÅÒв¯ ÑÕÅÌÈ ÇÉÎÌÓ Ï²Ä ×ÀÑ ÐÅÊÎÍÑÒÐÓÊÖ²¯ ÇÎÁÐÀÆÅÍÜ ÇÀ ¯X ÏÐÎÅÊÖ²ßÌÈ
It has been described the data structure, the algorithm and the program for image reconstruction on the basis of on-ray renewing technique. It has been carried out a number of investigations of dependence of quality of image reconstruction on scheme parameters and initial data processing.
Îïèñàíî ñòðóêòóðó äàíèõ, àëãîðèòì i ïðîãðàìó ðåêîíñòðóêö³¿ çîáðàæåíü íà ocíîâi ìåòîäó ïîïðîìåíåâîãî â³äíîâëåííÿ. Ïðîâåäåíî ðÿä äîñë³äæåíü çaëeæíocòi ÿêocòi ðåêîíñòðóêö³¿ çîáðàæåíü â³ä ïàðàìåòð³â ñõåì çéîìó òà ïåðâèííî¿ îáðîáêè äàíèõ.
ÓÄÊ 681.3
Á. Ò. Äåðêà÷, Â. Ï. Êîæàí
ÐÅÀ˲ÇÀÖ²ß ÀËÃÎÐÈÒ̲ ÎÁÐÎÁÊÈ ÇÎÁÐÀÆÅÍÜ, ÏÐÅÄÑÒÀÂËÅÍÈÕ ÇÀ ÄÎÏÎÌÎÃÎÞ ÊÂÀÄÐÀÍÒÄÅÐÅÂ
An approach to realization of algorithms for image processing is presented. Problem of matching binary images using quadtrees is discussed. Computing structures for effective realization such algorithms are proposed.
Îïèñàíî ï³äõ³ä äî ðåàë³çàö³¿ àëãîðèòì³â îáðîáêè çîáðàæåíü, ïðåäñòàâëåíèõ çà äîïîìîãîþ êâàäðàíòäåðåâ. Çîïðîïîíîâàíî îá÷èñëþâàëüí³ ñòðóêòóðè äëÿ åôåêòèâíî¿ ðåàë³çàö³¿ òàêèõ àëãîðèòì³â.
ÓÄÊ 551.568.85
Î. Â. Àëåêñåé÷óê, Þ. Á. Ðèöàð, ² Á. ²âàñåíêî
ÐÅÀ˲3ÀÖ²ß ÏÐÎÑ˲ÄÊÎÂÓÂÀÍÍß Â ÑÒÐÓÊÒÓÐÍÎ-ÀÄÀÏÒÈÂÍÎÌÓ ÌÅÒÎIJ ÂÈßÂËÅÍÍß ÒвÙÈÍÎÏÎIJÁÍÈÕ ÄÅÔÅÊҲ ÄËß ÐÀIJÎÃÐÀÔ²×ÍÎÃÎ ÊÎÍÒÐÎËÞ ßÊÎÑÒ² Ó ÏÐÎÌÈÑËÎÂ²É Ä²ÀÃÍÎÑÒÈÖ²
The problem of image binary segmentation is addressed to flaw the detection in diagnostics imaging. Due to specific features of images in the applications a structure-adaptive method is proposed which is used in combination with defect tracing procedure. Theoretical and experimental investigations of the proposed approach confirm its efficiency for flaws detection in materials and articles.
Äëÿ çíàõîäæåííÿ òð³ùèí ó ïðîöeci ðàä³îãðàô³÷íî¿ ä³àãíîñòèêè çàñòîñîâàíà á³íàðíà ñåãìåíòàö³ÿ çîáðàæåííÿ. Çàïðîïîíîâàíî ñòðóêòóðíî-àäàïòèâíèé ìåòîä, ÿêèé ïîºäíàíî ç ïðîöåäóðîþ ïðîñë³äêîâóâàííÿ äåôåêò³â. Òåîðåòè÷í³ òà åêñïåðèìåíòàëüí³ äîñë³äæåííÿ ï³äòâåðäæóþòü åôåêòèâí³ñòü òàêîãî ï³äõîäó äëÿ äåòåêòóâàííÿ òð³ùèí ó ìàòåð³àëàõ òà âèðîáàõ.
ÓÄÊ 681.3
Ð. À. Âîðîáåëü, ². M. Æóðàâåëü
ϲÄÂÈÙÅÍÍß ØÂÈÄÊÎIJ¯ ÎÁÐÎÁÊÈ ÑÈÃÍÀ˲ ÌÅÒÎÄÎÌ ÓÑÅÐÅÄÍÅÍÍß
Original technique for increasing of the speed of signal processing is presented. The method uses the computation of the average as a cumulation of certain increments of amplitudes of the signal.
Çàïðîïîíîâàíî íîâèé ï³äõ³ä äî ï³äâèùåííÿ øâèäêî䳿 îáðîáêè ñèãíàë³â ìåòîäîì óñåðåäíåííÿ. Ìåòîä âèêîðèñòîâóº îá÷èñëåííÿ óñåðåäíåííÿ ÿê íàãðîìàäæåííÿ ïåâíèõ ïðèðîñò³â àìïë³òóä ñèãíàëó.
ÀËÃÎÐÈÒ̲×ÍÅ ÒÀ ÏÐÎÃÐÀÌÌÅ ÇÀÁÅÇÏÅ×ÅÍÍß
ÓÄÊ 519.67
Â. Ï. Êîæàí, Á. Ò. Äåðêà÷, Ò. Ï. Ìàíäçþê
ÎÐÃÀͲ3ÀÖ²ß ÎÁ×ÈÑËÞÂÀËÜÍÎÃÎ ÏÐÎÖÅÑÓ Â MAKPOKOHBEªPI ÑÏÅÖ²À˲ÇÎÂÀÍÈÕ ÏÐÎÖÅÑѲÂ
The problem, of space time coordination in macropipeline of special-purpose processors for solving complex problems is considered. The algorithms of space time coordination, a general-purpose converter for their realization are proposed.
Äëÿ âèð³øåííÿ ïðîáëåìè ïðîñòîðîâî-÷àñîâîãî óçãîäæåííÿ ó ìàêðîêîíâåºð³ ñïåö³àë³çîâàíèõ oá÷ècëþâa÷iâ çàïðîïîíîâàíî àëãîðèòìè ïðîñòîðîâî-÷àñîâîãî óçãîäæåííÿ òà ñòðóêòóðó óí³âåðñàëüíîãî êîíâåðòîðà äëÿ ¿x ðåàë³çàö³¿.
ÓÄÊ 518.5
Î. ². Ëàóøíèê, Á. Î. Ïîïîâ, Ê. Â. Ñóùèê
ÍÀÁËÈÆÅÍÍß ÔÓÍÊÖ²¯ ÍÅ˲ͲÉÍÈÌÈ ÑÏËÀÉÍÀÌÈ
The balanced approximation of function by nonlinear Chebyshev spline with the given number of links is considered. The algorithm for finding optimal approximation by a sum of polynomial and nonlinear function is built.
Ðîçãëÿíóòî piâíîìipíe íàáëèæåííÿ ôóíêö³¿ f(x) íåë³í³éíèì ÷åáèøîâñüêèì ñïëàéíîì iç çàäàíîþ ê³ëüê³ñòþ ëàíîê. Ïîáóäîâàíî àëãîðèòì çíàõîäæåííÿ íàéêðàùîãî íàáëèæåííÿ ñóìîþ ìíîãî÷ëåíà òà íåë³í³éíî¿ ôóíêö³¿.
ÓÄÊ 621.372
Ï. Ã. Còaxiâ, Á. I. Êðóïñüêèé
ÎÑÎÁËÈÂÎÑÒ² ÐÎÇÏÀÐÀËÅËÅÍÍß ÇÀÄÀ× ÅËÅÊÒÐÎÒÅÕͲÊÈ ÍÀ ÁÀÃÀÒÎÏÐÎÖÅÑÎÐÍÈÕ ÎÁ×ÈÑËÞÂÀËÜÍÈÕ ÑÈÑÒÅÌÀÕ
The parallel algorithm for transient analysis of large scale integration circuits by the method of subcircuits is proposed. The influence of data exchanges on the time efficacy is investigated.
Çàïðîïîíîâàíî ïàðàëåëüíèé àëãîðèòì ðîçðàõóíêó ïåðåõ³äíèõ ðåæèì³â ðîáîòè åëåêòðîííèõ ê³ë âåëèêîãî ð³âíÿ ³íòåãðàö³¿ çà ìåòîäîì ï³äñõåì. Ðîçãëÿíóòî âïëèâè îáì³í³â äàíèìè íà ÷àñîâó åôåêòèâí³ñòü.
ÓÄÊ 681.325
À. É. Íàêîíå÷íèé
ÇÎÁÐÀÆÅÍÍß ØÈÐÎÊÎÑÌÓÃÎÂÈÕ ÂÇÀªÌÍÈÕ ÄÂÎÇÍÀ×ÍÈÕ ÔÓÍÊÖ²É Â ÌÀËÎÕÂÈËÜÎÂ²É ÎÁËÀÑÒ²
There have been presented the reformulation derivation of the wideband cross ambiguity functions in the wavelet domain. There has been shown the essential advantages of such method.
Ïîäàíî âèâ³ä çîáðàæåííÿ øèðîêîñìóãîâî¿ âçàºìíî¿ äâîçíà÷íî¿ ôóíêö³¿ â ìàëîõâèëüâ³é oáëacòi. Ïîêàçàí³ ocíoâíi ïåðåâàãè òàêîãî ìåòîäó.
Ïîíîâëåíî: 10.02.2004