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³äá³ð ³ îáðîáêà ³íôîðìàö³¿, ¹14(90), 2000


ÀÍÎÒÀÖ²¯

ÏÎËß ÒÀ ÑÈÃÍÀËÈ Ó ÍÅÎÄÍÎвÄÍÈÕ ÑÅÐÅÄÎÂÈÙÀÕ

ÓÄÊ 550.388.2
Â. Â. Êîøîâèé, Ñ. À. Ñîðîêà, Î. Ë. ²âàíòèøèí, ². Ì. Ðîìàíèøèí
ÂÈÊÎÐÈÑÒÀÍÍß ÏÎËßÐÈÇÀÖ²ÉÍÈÕ ÏÀÐÀÌÅÒв ÄËß ÂÈßÂËÅÍÍß ÂÏËÈÂÓ ÍÀ ²ÎÍÎÑÔÅÐÓ ØÒÓ×ÍÎÃÎ ÀÊÓÑÒÈ×ÍÎÃÎ ÇÁÓÐÅÍÍß

The method of experimental investigation of artificial acousto-ionospheric disturbances, caused by the ground based acoustic radiator is presented. Investigation is based on angle determination of polarization ellipse inclination of the signal registered by the radio-telescope URAN-3 using inclined sounding method. 


Ðîçãëÿíóòî ìåòîäèêó åêñïåðèìåíòàëüíîãî âèÿâëåííÿ øòó÷íèõ àêóñòî-³îíîñôåðíèõ çáóðåíü, âèêëèêàíèõ êåðîâàíèì àêóñòè÷íèì äæåðåëîì ç ïîâåðõí³ Çåìë³, çà êóòîì íàõèëó åë³ïñà ïîëÿðèçàö³¿ ñèãíàë³â ñëàáîíàõèëåíîãî çîíäóâàííÿ, çàðåºñòðîâàíèõ çà äîïîìîãîþ ðàä³îòåëåñêîïà ÓÐÀÍ-3.

ÓÄÊ 621.341.332
Î. Å. Ëåâèöüêèé, Î. Ë. ²âàíòèøèí
ÊÓÒÈ ÏÐÈÕÎÄÓ Â²ÄÁÈÒί ²ÎÍÎÑÔÅÐÍί ÐÀIJÎÕÂÈ˲ ÏÐÈ ÁÀÃÀÒÎÏÐÎÌÅÍÅÂÎÌÓ ÏÎØÈÐÅÍͲ

The problem of the dependence of resulting angles on the mode phase difference for double mode signal receiving is presented.

Ðîçãëÿíóòî çàäà÷ó çàëåæíîñò³ ðåçóëüòóþ÷èõ êóò³â ïðèõîäó â³ä ð³çíèöåâî¿ ôàçè ìîä äëÿ äâîìîäîâîãî ïðèéîìó ñèãíàëó.

ÓÄÊ 621.643.002.5
Â. Â. Êîøîâèé, Å. Â. Êðèâ³í, Î. Å. Ëåâèöüêèé
ÂÈÇÍÀ×ÅÍÍß ÊËÀÑÈÔ²ÊÀÖ²ÉÍÈÕ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ÄÅÔÅÊҲ ÌÅÒÎÄÀÌÈ ÓËÜÒÐÀÇÂÓÊÎÂί ËÓÍÎÒÎÌÎÃÐÀÔ²¯

The problem of defects characteristics clasterization in a product volume by a method of ultrasonic tomography, based on use of the algorithm adaptive formation back-proections (AFP) is considered.

Ðîçãëÿíóòî çàäà÷ó âèçíà÷åííÿ êëàñèô³êàö³éíèõ õàðàêòåðèñòèê äåôåêò³â â îá’ºì³ âèðîáó ìåòîäîì óëüòðàçâóêîâî¿ òîìîãðàô³¿, ùî ãðóíòóºòüñÿ íà âèêîðèñòàíí³ àëãîðèòìó àäàïòèâíîãî ôîðìóâàííÿ îáåðíåíèõ ïðîåêö³é.

ÓÄÊ 656.259.21
Â. Î. ͳ÷îãà, Ï. Á. Äóá
ÅËÅÊÒÐÎÐÓزÉÍÀ ÑÈËÀ ²ÍÄÓÊÖ²ÉÍÈÕ ÄÀÂÀ×²Â Ó ÏÎ˲ ÑÒÐÓ̲ ÀÂÒÎÌÀÒÈ×Íί ËÎÊÎÌÎÒÈÂÍί ÑÈÃÍÀ˲ÇÀÖ²¯

Electromotive forces in an inductive sensor situated in non-homogeneous magnetic field, created by currents of automatic locomotive signaling, that occur in a rail ðà³r, are considered. The expressions for electromotive forces for horizontal and vertical disposition of the sensor are received. The influence of ground conductivity and a locomotive on the output signal magnitude is shown.

Ðîçãëÿíóòî åëåêòðîðóø³éí³ ñèëè, ÿê³ âèíèêàþòü â ³íäóêö³éíîìó äàâà÷³, ðîçòàøîâàíîìó â íåîäíîð³äíîìó ìàãí³òíîìó ïîë³, óòâîðåíîìó ñòðóìàìè àâòîìàòè÷íî¿ ëîêîìîòèâíî¿ ñèãíàë³çàö³¿, ÿê³ òå÷óòü ó ðåéêîâ³é ïàð³. Âèðàçè äëÿ åëåêòðîðóø³éíî¿ ñèëè îòðèìàíî ÿê äëÿ ãîðèçîíòàëüíîãî, òàê ³ âåðòèêàëüíîãî ðîçì³ùåííÿ äàâà÷à. Âñòàíîâëåíî âïëèâ ïðîâ³äíîñò³ ãðóíòó ³ ëîêîìîòèâà íà âåëè÷èíó âèõ³äíîãî ñèãíàëó.

ÓÄÊ 538.3:550.372:620.1:621.6
Ð. Ì. Äæàëà
ÅËÅÊÒÐÎÄÈÍÀ̲×ÍÀ ÌÎÄÅËÜ ÒÐÓÁÎÏÐÎÂÎÄÓ 3 ÄÅÔÅÊÒÎÌ ²ÇÎËßÖ²¯

Electromagnetic field of a cylindrical structure with a lîñal damage in insulating layer is represented by åõðans³în in terms of elementary functions of electric and magnetic types. Equations for circular and sectorial defects field are derived.

Åëåêòðîìàãí³òíå ïîëå öèë³íäðè÷íî¿ ñòðóêòóðè ç ëîêàëüíèì ïîøêîäæåííÿì â ³çîëÿö³éíîìó øàð³ ïðåäñòàâëåíå ðîçêëàäîì çà åëåìåíòàðíèìè ôóíêö³ÿìè åëåêòðè÷íîãî òà ìàãí³òíîãî òèï³â. Îòðèìàíî ð³âíÿííÿ ïîëÿ äëÿ êðóãîâîãî ³ ñåêòîð³àëüíîãî äåôåêò³â.

ÓÄÊ 620.179.14
À. ß. Òåòåðêî, Â. ². Ãóòíèê
ÌÎÄÅËÜ ÑÈÑÒÅÌÈ ÏÅÐÂÈÍÍÈÉ ÏÅÐÅÒÂÎÐÞÂÀ× — ÎÁ'ªÊÒ ÊÎÍÒÐÎËÞ Â ÎÁÅÐÍÅÍÈÕ ÇÀÄÀ×ÀÕ ÂÈÕÐÎÑÒÐÓÌÎÂί ÄÅÔÅÊÒÎÑÊÎϲ¯

The solution of inverse Eddy currant NDT problems on the basis of development of the direct and inverse transfer function of the system are presented. On the test example the error of the cylindrical ³nñlus³în parametres estimate is demonstrated.

Ïîäàíî çàãàëüíèé ï³äõ³ä äî ïîáóäîâè ïðÿìî¿ òà çâîðîòíî¿ íåë³í³éíî¿ áàãàòîïàðàìåòðîâî¿ ìîäåë³ âèõðîñòðóìîâîãî ïåðåòâîðþâà÷à äëÿ ðîçâ'ÿçêó îáåðíåíèõ çàäà÷ êîíòðîëþ. Íà ïðèêëàä³ îö³íêè âåêòîðà ïàðàìåòð³â öèë³íäðè÷íîãî âêëþ÷åííÿ ïîêàçàíî ñò³éê³ñòü ðîçâ'ÿçêó òà â³äïîâ³äí³ñòü ïîõèáêè êîíòðîëþ âõ³äíèì äàíèì.

UDC 621.315.2
R. Nawrowski, À. Tomczewski
ÒÍÅ SOLUTION OF 3D ELECTRIC FIELD DISTRIBUTION BY MEANS OF BOUNDARY METHOD

This paper describes a method of analysis of the three-dimensional electric field distribution. The boundary method consists in calculating the distribution of density of an electric charge, electric potential and vector of electric field strength. ²n this method each surface is divided into N planar elements and approximated by function z=ax+by+c.

Çàïðîïîíîâàíî ìåòîä àíàë³çó òðèâèì³ðíîãî ðîçïîä³ëó åëåêòðè÷íîãî ïîëÿ. Êðàéîâèé ìåòîä ïîëÿãຠâ îá÷èñëåíí³ ðîçïîä³ëó ãóñòèíè åëåêòðè÷íîãî çàðÿäó, åëåêòðè÷íîãî ïîòåíö³àëó ³ âåêòîðà ñèëè åëåêòðè÷íîãî ïîëÿ. 3ã³äíî ç ìåòîäîì, êîæíó ïîâåðõíþ ðîçä³ëåíî ía N ïëàíàðíèõ åëåìåíò³â ³ àïðîêñèìîâàíî ôóíêö³ºþ z=ax+by+c.



ÌÀÒÅÌÀÒÈ×Ͳ ÌÎÄÅ˲ ÑÈÃÍÀ˲ ÒÀ ÑÈÑÒÅÌ

ÓÄÊ 621.391: 519.22
². Ì. ßâîðñüêèé, ². Þ. ²ñàºâ, ß. Ìàºâñê³
ÂËÀÑÒÈÂÎÑÒ² ÄÈÑÊÐÅÒÍÈÕ ÊÎÌÏÎÍÅÍÒÍÈÕ ÎÖ²ÍÎÊ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ÍÅÑÒÀÖ²ÎÍÀÐÍÈÕ ÌÎÄÓËÜÎÂÀÍÈÕ ÑÈÃÍÀ˲Â

The expressions for evaluation of the accuracy of correlation function component estimates, built on the basis of discrete amplitude and phase modulated signals arå given. The influence of superposition effect in statistical characteristics is interpreted. The method of the sample step selection is determined. 

Íàâåäåíî âèðàçè äëÿ âèçíà÷åííÿ ÿêîñò³ àíàë³çó êîìïîíåíòíèõ îö³íîê êîðåëÿö³éíî¿ ôóíêö³¿, ÿê³ îòðèìóþòü íà îñíîâ³ äèñêðåòíèõ ðåàë³çàö³é àìïë³òóäíî- ³ ôàçîìîäóëüîâàíèõ ñèãíàë³â. Ïîÿñíåíî âïëèâ åôåêòó íàêëàäàííÿ â ñòàòèñòè÷íèõ õàðàêòåðèñòèêàõ. Âèçíà÷åíî ìåòîäèêó âèáîðó êðîêó äèñêðåòèçàö³¿ äëÿ îòðèìàííÿ äîñòîâ³ðíèõ çíà÷åíü êîìïîíåíòíî¿ îáðîáêè.

ÓÄÊ 621.77(088.8)
Î. Ï. Äðàáè÷, Â. Þ. Ìèõàéëèøèí, ². Ì. ßâîðñüêèé
ÂÈÇÍÀ×ÅÍÍß ÏÅвÎÄÓ ÊÎÐÅËÜÎÂÀÍÎÑÒ² ÏÅвÎÄÈ×ÍÎ ÊÎÐÅËÜÎÂÀÍÈÕ ÂÈÏÀÄÊÎÂÈÕ ÏÐÎÖÅѲ ÇÀ ÄÎÏÎÌÎÃÎÞ ÊÎÂÀвÀÖ²ÉÍÈÕ ÏÅÐÅÒÂÎÐÅÍÜ

The results of the analysis of correlation period properties using the 1st and 2nd order covariation statistics are presented. Probabilistic characteristics of estimates are derived on the basis of non-linear equation solutions received by the method of small parameter. ²n the first approximation the expressions for the b³as and variation estimates are given.

Íàâåäåíî ðåçóëüòàòè àíàë³çó âëàñòèâîñòåé îö³íîê ïåð³îäó êîðåëüîâàíîñò³ çà êîâàð³àö³éíèìè ñòàòèñòèêàìè ïåðøîãî ³ äðóãîãî ïîðÿäê³â. ²ìîâ³ðí³ñí³ õàðàêòåðèñòèêè îö³íîê îäåðæàí³ íà îñíîâ³ ðîçâ'ÿçê³â íåë³í³éíèõ ð³âíÿíü, îòðèìàíèõ çà äîïîìîãîþ ìåòîäà ìàëîãî ïàðàìåòðà.  ïåðøîìó íàáëèæåíí³ îòðèìàíî âèðàçè äëÿ çì³ùåííÿ òà äèñïåðñ³¿ îö³íîê.

ÓÄÊ 621.314+621.396.66
Î. Â. Çàáîëîòíèé, Â. Þ Ìèõàéëèøèí
²ÁÐÎIJÀÃÍÎÑÒÈÊÀ ϲÄØÈÏÍÈʲ ÊÎ×ÅÍÍß ÌÅÒÎÄÀÌÈ ÏÅвÎÄÈ×ÍÎ ÊÎÐÅËÜÎÂÀÍÈÕ ÂÈÏÀÄÊÎÂÈÕ ÏÐÎÖÅѲÂ

The results of practical application of statistical methods of PCRP for solving a vibration diagnostics problem of the rolling element bearings are considered. On the basis of the proposed particular model of PCRP, a ðrîblem of correlation characteristics parametrical representation of random vibration, exited bó friction forces is solved.

Âèêëàäåíî ðåçóëüòàòè ïðàêòè÷íîãî çàñòîñóâàííÿ ñòàòèñòè÷íèõ ìåòîä³â ÏÊÂÏ äëÿ ä³àãíîñòèêè â³áðàö³éíîãî ñòàíó ï³äøèïíèê³â êî÷åííÿ ó âèïàäêàõ ¿õíüîãî íåïðàâèëüíîãî ìîíòàæó. Ðîçâ'ÿçàíà çàäà÷à ïàðàìåòðè÷íîãî ïîäàííÿ êîðåëÿö³éíèõ õàðàêòåðèñòèê âèïàäêîâî¿ â³áðàö³¿, çáóäæåíî¿ ñèëàìè òåðòÿ, â ðàìêàõ çàïðîïîíîâàíî¿ ÷àñòêîâî¿ ìîäåë³ ÏÊÂÏ.

ÓÄÊ 681.3(075.8)
Á. Î. Êàïóñò³é, Î. ². Êîâàëü, Á. À. Ìàíäç³é, Î. Â. Íàäîáêî
ÎÏÒÈ̲ÇÀÖ²ß ÍÀÏÐÓÃÈ ÆÈÂËÅÍÍß ËÎò×ÍÈÕ ÅËÅÌÅÍҲ ÍÀ ÊÎÌÏËÅÌÅÍÒÀÐÍÈÕ ÌÄÍ-ÒÐÀÍÇÈÑÒÎÐÀÕ ÇÀ ÊÐÈÒÅвªÌ ̲ͲÌÓÌÓ ÐÎÁÎÒÈ ÏÅÐÅÌÈÊÀÍÍß

The expression of a feeding voltage determination of logic elements în ñîmðlåmåntary MIS-transistors supplying minimum of switching work has been obtained. Dependence of a switching work on logic element parameters is investigated.

Îäåðæàíî âèðàç äëÿ âèçíà÷åííÿ íàïðóãè æèâëåííÿ ëîã³÷íèõ åëåìåíò³â íà êîìïëåìåíòàðíèõ ÌÄÍ-òðàíçèñòîðàõ, ùî çàáåçïå÷óº ì³í³ìóì ¿õ ðîáîòè ïåðåìèêàííÿ. Äîñë³äæåíî çàëåæí³ñòü ðîáîòè ïåðåìèêàííÿ â³ä ïàðàìåòð³â ëîã³÷íèõ åëåìåíò³â.

ÓÄÊ 551.568.85
². Â. Àçàðîâ, Ë. À. Ñèíèöüêèé
ÄÎÑ˲ÄÆÅÍÍß ÑÒ²ÉÊÎÑÒ² ÄÂÎÂÈ̲ÐÍÈÕ ÖÈÔÐÎÂÈÕ Ô²ËÜÒв ÄÐÓÃÈÌ ÌÅÒÎÄÎÌ ËßÏÓÍÎÂÀ

The second Lyapunov method is used to establish conditions for global àsymptotic stability of 2-D systems with nonlinearities due to quantization effects.

Ðîçãëÿíóòî äðóãèé ìåòîä Ëÿïóíîâà äëÿ äîñë³äæåííÿ ãëîáàëüíî¿ àñèìïòîòè÷íî¿ ñò³éêîñò³ äâîâèì³ðíèõ öèôðîâèõ ñèñòåì ç íåë³í³éí³ñòþ, îáóìîâëåíîþ åôåêòàìè çàîêðóãëåííÿ.

ÓÄÊ 621.372.061
Ï. Â. Òèìîùóê, Â. ². ˳ùåíþê
ÑÈÍÒÅÇ ÏÎÌÍÎÆÓÂÀ×À ×ÀÑÒÎÒÈ ÃÀÐÌÎͲ×ÍÈÕ ÑÈÃÍÀ˲Â

The method of solving the ðãîblåm of the harmonic signals frequency multiplier synthesis on the analog and digital elemental basis, based on building of its macro-models in the form of algebraic-differential and corresponding to them differential equations, is described.

Îïèñàíî ìåòîäèêó ðîçâ'ÿçàííÿ çàäà÷³ ñèíòåçó ïîìíîæóâà÷à ÷àñòîòè ãàðìîí³÷íèõ ñèãíàë³â â àíàëîãîâîìó òà öèôðîâîìó åëåìåíòíîìó áàçèñ³ íà îñíîâ³ ïîáóäîâè éîãî ìàêðîìîäåëåé ó ôîðì³ àëãåáðî-äèôåðåíö³àëüíèõ òà â³äïîâ³äíèõ ð³çíèöåâèõ ð³âíÿíü.

ÓÄÊ 621.396
². Í. Ïðóäèóñ, Ì. Ì. Ñóìèê, À. Ò. Ñèíÿâñüêèé
ÄÎÑ˲ÄÆÅÍÍß ÑÒ²ÉÊÎÑÒ² ÓÇÃÎÄÆÅÍί ÎÁÐÎÁÊÈ ÁÀÃÀÒÎÔÀÇÍÈÕ ÑÈÃÍÀ˲ ÄÎ ÄÎÏËÅвÂÑÜÊÈÕ ÇÑÓ² ×ÀÑÒÎÒÈ 

The results of a research of polyphase signals as main bang in radar systems are presented. The stability of matched processing of such signals is estimated in the presence in a received signal of a Doppler shift. The paper deals with the polyphase signals of Frank code, P-code, Chu-code, polyphase sequences of maximum length, and polyphase signals with a single level of side lobes of autocorrelation function.

Íàâåäåíî ðåçóëüòàòè äîñë³äæåííÿ áàãàòîôàçíèõ ñèãíàë³â ÿê çîíäóâàëüíèõ ³ìïóëüñ³â ó ðàä³îëîêàö³éíèõ ñèñòåìàõ. Îö³íåíî ñò³éê³ñòü ïàðàìåòð³â óçãîäæåíî¿ îáðîáêè òàêèõ ñèãíàë³â çà íàÿâíîñò³ ó ïðèéíÿòîìó ñèãíàë³ äîïëåð³âñüêîãî çñóâó ÷àñòîòè (ÄÇ×). Ïðîàíàë³çîâàíî áàãàòîôàçí³ ñèãíàëè ç îäèíè÷íèì ð³âíåì á³÷íèõ ïåëþñòê³â (ÎÐÁÏ) àâòîêîðåëÿö³éíî¿ ôóíêö³¿ (ÀÊÔ), áàãàòîôàçí³ ïîñë³äîâíîñò³ ìàêñèìàëüíî¿ äîâæèíè (ÏÌÄ) ³ ³í.



ÎÁÐÎÁÊÀ ÂÈ̲ÐÞÂÀËÜÍί ²ÍÔÎÐÌÀÖ²¯

ÓÄÊ 621.794.052.08
Î. Ï. Áóõàëî, Á. Ï. Êëèì, Ã. Â. Ìèêèòèí, ª. Ï. Ïî÷àïñüêèé, Ð. Ô. Ôåäîð³â
ÂÈ̲ÐÞÂÀËÜͲ ÏÅÐÅÒÂÎÐÅÍÍß ÑÈÃÍÀËÓ ÀÊÓÑÒÈ×Íί Å̲Ѳ¯

An AE signal measuring model is proposed. On the basis of this AE signal model,the methods of the hindrances filtration, algorithms of amplitude and time characteristics as well as damping parameter estimation arå described.

Çàïðîïîíîâàíî ìîäåëü âèì³ðþâàëüíîãî ñèãíàëó, çà ÿêîþ îïèñàíî ìåòîäè ô³ëüòðàö³¿ çàâàä, àëãîðèòìè îö³íîê àìïë³òóäíèõ ³ ÷àñîâèõ õàðàêòåðèñòèê ñèãíàëó ÀÅ, à òàêîæ ïàðàìåòðà éîãî çàíèêàííÿ ç ÷àñîì.

ÓÄÊ 621.317
Â. Ä. Ïîãðåáåííèê, Ì. Ì. Ìåëüíèê
ÊÎÍÒÐÎËÜ ÍÀÏÐÓÃÈ Ë²Í²É ÅËÅÊÒÐÎÏÅÐÅÄÀ× ÒÀ ÏÐÎÌÈÑËÎÂÈÕ ÅÍÅÐÃÎÓÑÒÀÍÎÂÎÊ

Remote indicator of voltage of type DIN-1 and digital device of control of voltage over prescribed limit of type PKN-1 is presented. The device can be used to find broad application in industry for optimization of technology process and improve quality of industrial goods.

Îïèñàíî äèñòàíö³éíèé ³íäèêàòîð íàïðóãè òèïó IJÍ-1 òà öèôðîâèé ïðèëàä êîíòðîëþ âèõîäó íàïðóãè çà çàäàí³ ìåæ³ òèïó ÏÊÍ-1, ÿê³ ìîæóòü øèðîêî çàñòîñîâóâàòèñÿ ó ïðîìèñëîâîñò³, çîêðåìà, äëÿ îïòèì³çàö³¿ òåõíîëîã³÷íèõ ïðîöåñ³â òà ïîêðàùåííÿ ÿêîñò³ âèðîá³â.

ÓÄÊ 620.179
². Ì. Áó÷ìà
ÄÈÔÅÐÅÍÖ²ÀËÜÍÈÉ ÂÈ̲ÐÞÂÀ× Ð²ÇÍÈÖ² ÀÌÏ˲ÒÓÄ ²ÍÔÐÀÍÈÇÜÊÎ×ÀÑÒÎÒÍÈÕ ÃÀÐÌÎͲ×ÍÈÕ ÑÈÃÍÀ˲ 3 ÏÅвÎÄÈ×ÍÈÌ ÏÎвÂÍßÍÍßÌ

A new method of detection signals in differential measurer of amplitudes with using elements of analogue memory for detection are proposed. The method provides detection of infrasonic frequency signals with a modulation factor of about 0.02%.

Çàïðîïîíîâàíî ìåòîä äåòåêòóâàííÿ ñèãíàë³â äèôåðåíö³àëüíèõ âèì³ðþâà÷³â àìïë³òóä, â ÿêîìó âèêîðèñòîâóþòü àíàëîãîâ³ åëåìåíòè ïÿì'ÿò³. Ìåòîä çàáåçïå÷óº äåòåêòóâàííÿ ñèãíàë³â ³íôðàíèçüêî¿ ÷àñòîòè, êîåô³ö³ºíò ìîäóëÿö³¿ ÿêèõ ìîæå ñêëàäàòè ñîò³ äîë³ â³äñîòêà.

ÓÄÊ 621.317.3/4
Ï. Ì. Ñîïðóíþê, ß. Å. ϳäã³ðíÿê
ÌÎÐÑÜÊÈÉ ÑÅÍÑÎÐ ÅËÅÊÒÐÈ×ÍÎÃÎ ÏÎËß

A new type of quasiconstant electrical field indicator, of a new sructure with a ñlåaranñås of 1mm are included between the working hydroswitch surfaces is described. This increases reliability of indicator and decreases the hydroswitch supply power, makes the construction and producing technology easier.

Îïèñàíî ïðèíöèï ïîáóäîâè òà ðîáîòó êîðîòêîáàçîâîãî ìîðñüêîãî ñåíñîðà êâàç³ïîñò³éíîãî åëåêòðè÷íîãî ïîëÿ íîâî¿ êîíñòðóêö³¿, ó ÿêîìó ã³äðîïåðåìèêà÷ ìຠçàçîð ì³æ ðîáî÷èìè ïîâåðõíÿìè, ùî ïîêðàùóº éîãî ìåòðîëîã³÷í³ õàðàêòåðèñòèêè òà åêñïëóàòàö³éí³ ïàðàìåòðè.

ÓÄÊ 621.316.925:621.327
Î. Ï. Áóõàëî, Ï. Ï. Äðàáè÷
ÂÈ̲ÐÞÂÀ× ÊÎÍÖÅÍÒÐÀÖ²¯ ÃÎÐÞ×ÈÕ ÃÀÇ²Â Ó ÏβÒв

Operation principle and structural scheme of the device for measurement of concentration of gaseous hydrocarbons and other combustible gases in air are described. Technical characteristics of the device are given.

Îïèñàíî ïðèíöèï ðîáîòè òà ñòðóêòóðíó ñõåìó ïðèñòðîþ äëÿ âèì³ðþâàííÿ êîíöåíòðàö³¿ ãàçîâèõ âóãëåâîäí³â òà ³íøèõ ãîðþ÷èõ ãàç³â ó ïîâ³òð³. Ïîäàíî òàêîæ òåõí³÷í³ õàðàêòåðèñòèêè.

ÓÄÊ 621.317:550.383
Î. Ì. Ñâåíñîí
ÑÏÓ×ÓÂÀÍÍß ÇÅÌÍί ÏÎÂÅÐÕͲ – ÄÎÄÀÒÊÎÂÈÉ ²ÍÔÎÐÌÀÒÈÂÍÈÉ ÏÀÐÀÌÅÒÐ Ó ÏÐÎÃÍÎÇÓÂÀÍͲ ÇÅÌËÅÒÐÓѲÂ

The possibility of long-term earthquake forecast by periodical super-precise measurements of relative attitude of the set of Earth fixed surface points was studied. The geostationary satellite is used as a reference mark. Measurements based on comparison of phases of the signals from TV retranslating satellite. ²n this way usage of the proposed method does not require the re-equipping of the satellite.

Ðîçãëÿíóòî ìîæëèâ³ñòü äîâãîòðèâàëîãî ïîïåðåäæåííÿ íåãëèáîêèõ çåìëåòðóñ³â øëÿõîì ïåð³îäè÷íîãî íàäòî÷íîãî âèì³ðþâàííÿ â³äíîñíî¿ âèñîòè íàáîðó ô³êñîâàíèõ òî÷îê çåìíî¿ ïîâåðõí³. ßê ðåïåð âèêîðèñòàíî ãåîñòàö³îíàðíèé ñóïóòíèê.



ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ ÒÀ ÐÎÇϲÇÍÀÂÀÍÍß ÎÁÐÀDzÂ

ÓÄÊ 681.325.5
Ð. À. Âîðîáåëü
ÌÅÒÎÄ Ï²ÄÑÈËÅÍÍß ÊÎÍÒÐÀÑÒÓ ÇÎÁÐÀÆÅÍÍß 3 ÂÈÊÎÐÈÑÒÀÍÍßÌ ÍÅ˲ͲÉÍÈÕ ÏÅÐÅÒÂÎÐÅÍÜ ÊÎÌÏÎÍÅÍÒ Ã²ÑÒÎÃÐÀÌÈ

The methods of global histogram equalization for images contrast enhancement are ànalósåd. Euler's histogramã components transform for forming transformation function for ð³õåls brightness are proposed to be used.

Ïðîàíàë³çîâàíî ìåòîäè ãëîáàëüíîãî âèð³âíþâàííÿ ã³ñòîãðàìè äëÿ ï³äâèùåííÿ êîíòðàñòó çîáðàæåíü. Çàïðîïîíîâàíî âèêîðèñòîâóâàòè ïåðåòâîðåííÿ Åéëåðà êîìïîíåíò ã³ñòîãðàìè ïðè ôîðìóâàíí³ ôóíêö³¿ ïåðåòâîðåííÿ ÿñêðàâîñòåé åëåìåíò³â çîáðàæåííÿ.

ÓÄÊ 621.325
Í. Â. Îïèð
ÅÊÂÀ˲ÇÀÖ²ß Ã²ÑÒÎÃÐÀÌ ÍÀ ÎÑÍβ ÀÏÐÎÊÑÈÌÀÖ²ÉÍί ÌÎÄÅ˲ ÑÏÐÈÉÍßÒÒß ÇÎÁÐÀÆÅÍÍß

The method of histogram equalization by using the approximate expressions to define a noticeable difference of visual perception of image is proposed. The analytical expressions for transform function, which can be used to design numerical image processing algorithms are consider.

Çàïðîïîíîâàíî ìåòîäèêó åêâàë³çàö³¿ ã³ñòîãðàì çà äîïîìîãîþ àïðîêñèìàö³éíîãî âèðàçó äëÿ âèçíà÷åííÿ ïîðîãà ÷óòëèâîñò³ â³çóàëüíîãî ñïðèéíÿòòÿ çîáðàæåííÿ. Îòðèìàíî àíàë³òè÷í³ âèðàçè äëÿ ôóíêö³¿ ïåðåòâîðåííÿ, ÿê³ ìîæíà âèêîðèñòîâóâàòè äëÿ ïîáóäîâè ÷èñëîâèõ àëãîðèòì³â îáðîáêè çîáðàæåíü.

ÓÄÊ 681.325
Ð. À. Âîðîáåëü, ². Ì. Æóðàâåëü
ϲÄÂÈÙÅÍÍß ÊÎÍÒÐÀÑÒÓ ÇÎÁÐÀÆÅÍÜ ÇÀ ÄÎÏÎÌÎÃÎÞ ÌÎÄÈÔ²ÊÎÂÀÍÎÃÎ ÌÅÒÎÄÓ ÊÓÑÊÎÂÎÃÎ ÐÎÇÒßÃÓ

Methods for linear, piecewise-linear stretching and gamma-correction ñîncerning contrast ³nñråaså of monochrome images are considered. A modified method of piecewise stretch with a fixed knot point for brightness transformation of the input image elements which provides a fast contrast increase is proposed.

Ðîçãëÿíóòî ìåòîäè ë³í³éíîãî, êóñêîâî-ë³í³éíîãî ðîçòÿãó òà ãàììà-êîðåêö³³ äëÿ ï³äâèùåííÿ êîíòðàñòó ìîíîõðîìíèõ çîáðàæåíü. Çàïðîïîíîâàíî ìîäèô³êîâàíèé ìåòîä êóñêîâîãî ðîçòÿãó ç ô³êñàö³ºþ âóçëîâî¿ òî÷êè õàðàêòåðèñòèêè ïåðåòâîðåííÿ ÿñêðàâîñòåé åëåìåíò³â âõ³äíîãî çîáðàæåííÿ, ÿêèé çàáåçïå÷óº øâèäêå ï³äñèëåííÿ éîãî êîíòðàñòó.

ÓÄÊ 621.391
Ð. ß. Êîñàðåâè÷, Á. Ï. Ðóñèí
ÂÈIJËÅÍÍß ÏÀϲËßÐÍÈÕ Ë²Í²É ÍÀ ÁÀÃÀÒÎ-ÃÐÀÄÀÖ²ÉÍÈÕ ÇÎÁÐÀÆÅÍÍßÕ ÄÀÊÒÈËÎÑÊÎϲ×ÍÈÕ ÎÁ'ªÊҲ ÇÀ ÄÎÏÎÌÎÃÎÞ ÏÐÎԲ˲Â

A scheme for segmentation of fingerprint images is presented. The threshold of segmentation is checked under consideration of profile of image rows. This threshold adaptively changes within the image row.

Çàïðîïîíîâàíî ìåòîä á³íàðèçàö³¿ çîáðàæåíü â³äáèòê³â ïàï³ëÿðíèõ â³çåðóíê³â ï³ä ÷àñ çíàõîäæåííÿ ïîðîãà íà îñíîâ³ òàê çâàíîãî ïðîô³ëþ ðÿäêà çîáðàæåííÿ. Ïîð³ã á³íàðèçàö³¿ àäàïòèâíî çì³íþºòüñÿ â ìåæàõ îêðåìîãî ðÿäêà ³ çàëåæèòü â³ä çì³íè âåëè÷èíè ÿñêðàâîñò³ ï³ä ÷àñ ïåðåõîäó â³ä ïàï³ëÿðíèõ ãðåáåí³â äî ì³æïàï³ëÿðíèõ ïðîì³æê³â.

ÓÄÊ 681.7:621.391
Ë. ². Ìóðàâñüêèé
ÂÈÊÎÐÈÑÒÀÍÍß ÒÐÀÍÑÔÎÐÌÎÂÀÍÈÕ ÔÀÇÎÂÈÕ MACOÊ Ó ÊÎÐÅËßÖ²ÉÍ²É ÑÈÑÒÅ̲ ²ÄÅÍÒÈÔ²ÊÀÖ²² ÎÏÒÈ×ÍÈÕ Ì²ÒÎÊ

The correlation system for identification of optical marks containing transformed phase masks is considered. The optical mark identification procedure basåd în comparison of the identification feature vector with the reference feature vector is analyzed.

Ðîçãëÿíóòî êîðåëÿö³éíó ñèñòåìó ³äåíòèô³êàö³¿ îïòè÷íèõ ì³òîê, ùî ì³ñòÿòü òðàíñôîðìîâàí³ ôàçîâ³ ìàñêè. Ïðîàíàë³çîâàíî ïðîöåäóðó ³äåíòèô³êàö³¿ îïòè÷íî¿ ì³òêè, ùî áàçóºòüñÿ íà ïîð³âíÿíí³ ³äåíòèô³êàö³éíîãî âåêòîðà îçíàê ç åòàëîííèì.

ÓÄÊ 621.372
ß. Â. Áîáèöüêèé, Ã. Ï. Ëàáà, Î. Ï. Ìàêñèìåíêî
ÎÖ²ÍÊÀ ÔÎÐÌÈ ² ÕÀÐÀÊÒÅÐÍÈÕ ÐÎÇ̲в ÏÎ˲ÌÅÐÍÈÕ Ì²ÊÐÎ˲ÍÇ ÇÀ ¯Õ ÇÎÁÐÀÆÅÍÍßÌ

A method for estimation of the shape of microlenses formed by polymerization of sessile drop of photosensitive composition is considered. The approximate analytical expression for the surface curvature is obtained. The deviation of microlenses surface curvature from spherical surface is analyzed. The microlenses ñurvature radius, diameter and height are calculated.

Çàïðîïîíîâàíî îïåðàòèâíèé ñïîñ³á îö³íêè ãåîìåòðè÷íèõ ïàðàìåòð³â ì³êðîë³íç, âèãîòîâëåíèõ ïîë³ìåðèçàö³ºþ ëåæà÷î¿ êðàïëèíè ôîòî÷óòëèâî¿ êîìïîçèö³¿. Îòðèìàíî íàáëèæåíèé àíàë³òè÷íèé âèðàç äëÿ êðèâèçíè ïîâåðõí³ òà ïðîàíàë³çîâàíî â³äì³íí³ñòü êðèâèçíè ïîâåðõí³ ì³êðîë³íç â³ä ñôåðè÷íî¿. Ðîçðàõîâàíî ðàä³óñ êðèâèçíè, ä³àìåòð ³ âèñîòó ì³êðîë³íçè.



ÀËÃÎÐÈÒ̲×ÍÅ ÒÀ ÏÐÎÃÐÀÌÍÅ ÇÀÁÅÇÏÅ×ÅÍÍß

ÓÄÊ 518.5:550.832
Ò. 3. Âåðáèöüêèé, ². ²ñêåðêà, Á. Î. Ïîïîâ
ÌÎÄÅËÜ ÇÀËÅÆÍÎÑÒ² ØÂÈÄÊÎÑÒ² ÏÎØÈÐÅÍÍß ÏÎÇÄÎÂÆÍÜί ÏÐÓÆÍί ÕÂÈ˲  ÇÐÀÇÊÓ ÏÎÐÎÄÈ Â²Ä ÒÈÑÊÓ ÒÀ ¯¯ ÇÀÑÒÎÑÓÂÀÍÍß

On the basis of Lambert W-function the cracking pore distribution function of mountainous rocks depending îï pressure is built.

Íà îñíîâ³ W-ôóíêö³¿ Ëàìáåðòà ïîáóäîâàíà çàëåæí³ñòü ôóíêö³¿ ðîçïîä³ëó òð³ùèííî¿ ïîðèñòîñò³ ã³ðñüêèõ ïîð³ä â³ä òèñêó.

ÓÄÊ 518.5
Á. Î. Ïîïîâ, Ê. Â. Ñóùèê
ÒÎ×ͲÑÒÜ ÍÀÁËÈÆÅÍÍß ÔÓÍÊÖ²ªÞ Â²Ä ÐÀÖ²ÎÍÀËÜÍÎÃÎ ÌÍÎÃÎ×ËÅÍÀ

Balanced approximation by Chebyshev spline with the links as nonlinear functions of rational polynomial is considered. The theorem regarding approximation kernel is proved.

Ðîçãëÿíóòî ð³âíîì³ðíå íàáëèæåííÿ ôóíêö³¿ ÷åáèøîâñüêèì ñïëàéíîì ç ëàíêàìè ó âèãëÿä³ íåë³í³éíî¿ ôóíêö³¿ â³ä ðàö³îíàëüíîãî ìíîãî÷ëåíà. Äîâåäåíî òåîðåìó ïðî ÿäðî öüîão íàáëèæåííÿ.

ÓÄÊ 621.372.542:517.519
Ò. Á. Êó÷èíñüêèé, À. À. Ëóêåíþê, Ì. Ì. ßöèì³ðñüêèé
ÑÒÈÑÊ ÄÀÍÈÕ Ó ÁÎÐÒÎÂÈÕ ÑÈÑÒÅÌÀÕ ÎÁÐÎÁÊÈ ÂÈ̲ÐÞÂÀËÜÍί ²ÍÔÎÐÌÀÖ²¯

The ðrîblåm of data compression ³n airborne scientific data processing systems is considered. À new efficient algorithm of fast biorthogonal ÑDF 9/7 wavelet transformation is proposed to decrease computational cost. This method allows to reduce twice the quantity of airborne data compression devices.

Ðîçãëÿíóòî çàäà÷ó ñòèñêó äàíèõ ó áîðòîâèõ ñèñòåìàõ îáðîáêè âèì³ðþâàëüíî¿ ³íôîðìàö³¿. Äëÿ çìåíøåííÿ îá÷èñëþâàëüíèõ çàòðàò çàïðîïîíîâàíî íîâèé åôåêòèâíèé àëãîðèòì îá÷èñëåííÿ øâèäêîãî á³îðòîãîíàëüíîãî CDF 9/7 õâèëüîâîãî ïåðåòâîðåííÿ, ÿêèé äຠìîæëèâ³ñòü â äâà ðàçè ñêîðîòèòè ê³ëüê³ñòü îáëàäíàííÿ áîðòîâèõ çàñîá³â ñòèñêó äàíèõ.

ÓÄÊ 519.67
Â. Ï. Êîæàí, Á. Ò. Äåðêà÷
ÂÈÑÎÊÎÏÐÎÄÓÊÒÈÂͲ ÑÒÐÓÊÒÓÐÈ ÄËß ÌÍÎÆÅÍÍß ÏÎ˲ÍÎ̲Â

This paper presents a new algorithm for perfoming fast multiplication in GF(2m) and sparse polynomials. The designs are highly regular, modular, and well-suited for VLSI implementation.

Ðîçãëÿíóòî çàäà÷ó ìíîæåííÿ ðîçð³äæåíèõ ïîë³íîì³â òà ïîë³íîì³â íàä ïîëÿìè Ãàëóà GF(2m), çàïðîïîíîâàíî àëãîðèòìè òà ñòðóêòóðè ñïåö³àë³çîâàíèõ ïîìíîæóâà÷³â äëÿ ¿õ ðåàë³çàö³¿.

ÓÄÊ 551.568.85
Ï. Ì. Ñîïðóíþê, Â. Ì. Þçåâè÷, Î. ². Îã³ðêî, Ï. Â. Ëóãîâèé
ÀÂÒÎÌÀÒÈÇÀÖ²ß ÌÀÒÅÌÀÒÈ×ÍÈÕ ÎÁ×ÈÑËÅÍÜ ÄËß ÎÖ²ÍÊÈ ÏÀÐÀÌÅÒв ÏÎÂÅÐÕÍÅÂÈÕ ØÀвÂ

Mechanical and electrical phenomena in deformable solid surface of metals arå theoretical bó investigated. The calculations include three approximations. Computer simulations of three approximations involving high-level language PASCAL were performed. The concepts and the methods for the construction of automatically mathematical means for description, equivalent transformations and investigation of the mathematical models of algorithms are worked out.

Òåîðåòè÷íî äîñë³äæåíî ìåõàí³÷í³ é åëåêòðè÷í³ ïðîöåñè â äåôîðìîâàíèõ òâåðäèõ ïîâåðõíÿõ ìåòàë³â. Êîìï'þòåðí³ ðîçðàõóíêè ì³ñòÿòü òðè íàáëèæåííÿ ðîçêëàäó çà ìàëèì ïàðàìåòðîì, ÿê³ ïðîâåäåíî íà îñíîâ³ ìîâè PABCAL. Ðîçðîáëåíî êîíöåïö³¿ òà ñïîñîáè ïîáóäîâè àâòîìàòèçîâàíèõ ìàòåìàòè÷íèõ çàñîá³â îïèñó, åêâ³âàëåíòíèõ ïåðåòâîðåíü ³ äîñë³äæåííÿ ìàòåìàòè÷íèõ ìîäåëåé â³äïîâ³äíèõ àëãîðèòì³â.

ÓÄÊ 681.3
Á. Ò. Äåðêà÷, Â. Ï. Êîæàí, Á. Â. Êèñ³ëü
ϲÄÂÈÙÅÍÍß ÅÔÅÊÒÈÂÍÎÑÒ² ÐÎÁÎÒÈ ÃÐÀÔ²×ÍÈÕ ÁÀÇ ÄÀÍÈÕ

The functional requirements and description for image based information system purpose are proposed. Some ways to improve performance and capability of such system are presented.

Ðîçãëÿíóòî ñòðóêòóðó òà ôóíêö³îíàëüí³ âèìîãè äî ñèñòåìè îáðîáêè òà çáåðåæåííÿ çîáðàæåíü. Çàïðîïîíîâàíî ï³äõîäè, ÿê³ äîçâîëÿòü ï³äâèùèòè åôåêòèâí³ñòü òà ºìí³ñòü òàêî¿ ñèñòåìè. 


Ïîíîâëåíî:14.04.2004