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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.
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.
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.
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 ÐÎÇ̲вÂ
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.
ÓÄÊ 518.5
Á. Î. Ïîïîâ, Ê. Â. Ñóùèê
ÒÎ×ͲÑÒÜ ÍÀÁËÈÆÅÍÍß ÔÓÍÊÖ²ªÞ ²Ä
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.