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master's thesis
Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. urn:nbn:hr:168:288596
Šakić, Mile
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Šakić, M. (2021). Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:288596

Šakić, Mile. "Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. https://urn.nsk.hr/urn:nbn:hr:168:288596

Šakić, Mile. "Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2021. https://urn.nsk.hr/urn:nbn:hr:168:288596

Šakić, M. (2021). 'Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 29 June 2024, https://urn.nsk.hr/urn:nbn:hr:168:288596

Šakić M. Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2021 [cited 2024 June 29] Available at: https://urn.nsk.hr/urn:nbn:hr:168:288596

M. Šakić, "Sinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:168:288596

Metadata
TitleSinteza maksimalno glatkih prostornih filtara temeljena na Gaussovom otvoru
Title (english)Synthesis of Maximally Flat Spatial Filters Based on Gaussian Window
AuthorMile Šakić
MentorGoran Molnar (mentor)
Committee memberGoran Molnar (predsjednik povjerenstva)
Committee memberMladen Vučić (član povjerenstva)
Committee memberDražen Jurišić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2021-07-09, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
U ovom radu započinje se s kratkim uvodom u antenske nizove uključujući osnove metoda dizajna s danim izrazima i neke od osnovnih karakteristika prostornih filtara općenito. Nastavlja se s opisom standardnog Gaussovog otvora i predložene linearne i kvadratne transformacije čija je svrha manipulacija određenim značajkama. Posebna pažnja u radu posvećena je kvadratnoj transformaciji standardnog Gaussovog otvora koja rezultira zrakom maksimalno ravnog vrha. Koristeći ovu transformaciju razvijena su dva postupka za generiranje Gaussovih nizova. Prvi je analitički postupak za sintezu Gaussovih filtara s ravnim vrhom i zadanom razinom bočnih latica. Drugi je numerički postupak za sintezu Gaussovih filtara s minimalnim dinamičkim rasponom koeficijenata. Minimalni dinamički raspon koeficijenta dobiven je kombiniranjem standardnog numeričkog postupka i korištenjem nizova s nultim koeficijentima. Na kraju ovog rada dana je usporedba dobivenih filtara s ostalim filtrima s ravnim vrhom i to su konkretno SRC (engl. sharpened raised cosine), GDC (engl. generalized Dolph-Chebyshev) i EDC (engl. exponential Dolph-Chebyshev). Filtri su uspoređeni prema četiri značajke dane u obliku tablica te su prikazani njihovi dijagrami zračenja.
Abstract (english)
This piece of work starts with a short introduction to antenna arrays including array design fundamentals with given expressions and some of the basic features of spatial filters in general. It proceeds with a description of a standard Gaussian window and it's proposed linear and quadratic transform whose purpose is manipulation of certain features. The focus of the work is on the quadratic transform of standard Gaussian window which results in a maximally flat top beam. Using this transform two procedures for generating Gaussian arrays are developed. The first one is the analytical procedure for the synthesis of flat top Gaussian filters with given sidelobe level. The another one is numerical procedure for the synthesis of flat top Gaussian filters with minimum dynamic range ratio. The minimum dynamic range ratio is obtained by combining the standard numerical procedure and the usage of arrays which have some elements equal to zero. At the end of this work the derived filters are compared with other spatial filters with flat top and specifically those are sharpened raised cosine (SRC), generalized Dolph-Chebyshev (GDC) and exponential Dolph-Chebyshev (EDC) filter. Filters are compared based on four features given in tables and respective beampatterns are shown.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:288596
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2023-01-13 16:13:27