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undergraduate thesis
Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju
2016. urn:nbn:hr:200:198297
Bosanac, Ljubica
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Communications
Chair of Electronics and Microelectronics

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Bosanac, Lj. (2016). Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju (Undergraduate thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:198297

Bosanac, Ljubica. "Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:200:198297

Bosanac, Ljubica. "Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:200:198297

Bosanac, Lj. (2016). 'Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 10 December 2024, https://urn.nsk.hr/urn:nbn:hr:200:198297

Bosanac Lj. Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2016 [cited 2024 December 10] Available at: https://urn.nsk.hr/urn:nbn:hr:200:198297

Lj. Bosanac, "Primjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:200:198297

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Metadata
TitlePrimjena vremensko-digitalnog pretvornika za impulsno frekvencijsku demodulaciju
Title (english)Aplication of time-to-digital converter for pulse frequency demodulation
AuthorLjubica Bosanac
MentorTomislav Matić (mentor)
Committee memberTomislav Matić (predsjednik povjerenstva)
Committee memberHrvoje Glavaš (član povjerenstva)
Committee memberMarijan Herceg (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Communications)
(Chair of Electronics and Microelectronics)
Osijek
Defense date and country2016-09-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Abstract
Vremensko-digitalni pretvornici koriste se za pretvorbu vremenskog intervala u digitalni oblik, najčešće binarni. Postoje mnoge izvedbe koje se usavršavaju vremenom, od vremensko-digitalnih pretvornika baziranih na brojačima, tehnikama s fazno zaključanom petljom ili linijom za kašnjenje te druge. Također pronalaze široku primjenu u fizici, masenoj spektrometriji, pri ultrazvučnim mjerenjima, u elektronici i drugdje gdje je potrebna analiza signala i pretvorba istih u digitalni oblik. Impulsno frekvencijska demodulacija slabo je zastupljena demodulacija zbog složene izvedbe i potrebnog stabilnog oscilatora. Demodulacija općenito predstavlja oporavak, detekciju ili ekstrakciju na prijemnoj strani. U radu je prikazan način rada vremensko-digitalnog pretvornika kome je prethodila modulacija analognog signala u impulsni niz. Analogni signal dovodi se na ulaz komparatora i uspoređuje s rampom koju čine istosmjerni izvor i kondenzator. Punjenjem kondenzatora započinje se pretvorba (pretvorba jednostrukog nagiba, engl. Single-slope integration) i u isto vrijeme brojač počinje brojati impulse stabilnog takta. Kad napon rampe dosegne razinu ulaznog signala, komparator daje impuls i tako zaustavlja brojač. Impulsni niz koji daje komparator je modulirani analogni signal. Na kraju pretvorbe krug ispražnjuje kondenzator i resetira brojač koji je spreman za idući ciklus. Izvedba je jednostavna i zahtijeva pretvorbu s dobrom rezolucijom
Abstract (english)
Time-to-digital converters are used to convert time intervals into digital form, mostly binary. There are many TDC architectures that are improving through time, from counter based TDCs to delay locked loop or phase locked loop architectures, etc. Moreover, they find application in physics, mass spectrometry, ultrasonic measurements, electronics and elsewhere where the signal analysis and its conversion into digital form is needed. Pulse frequency demodulation is poorly present because of the complex design and need of stable oscillator. Generally, demodulation means recovery, detection or extraction at the receiving side. In this paper the mode of TDC is shown preceded by the modulation of the analogue signal to pulse wave. The analog signal is compared with a ramp consisting of a DC source and a capacitor. Conversion starts with charging the capacitor and is called a single-slope integration. At the same time counter starts counting pulses of a stable clock. When the voltage ramp reaches the level of the input signal, the comparator provides the pulse and thus stops the counter. The pulse wave given by the comparator is a modulated analogue signal. At the end of the conversion circuit discharges the capacitor and resets the counter which is ready for the next cycle. Implementation is simple and requires conversion with a good resolution
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:198297
Study programmeTitle: Undergraduate University Study Programme
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-10-14 12:18:23