Title
Sinteza i realizacija uskopojasnih rekurzivnih digitalnih filtara nepropusnika opsega
Creator
Krstić, Ivan B.
Copyright date
2018
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
Dozvoljavate samo preuzimanje i distribuciju dela, ako/dok se pravilno naznačava ime autora, bez ikakvih promena dela i bez prava komercijalnog korišćenja dela. Ova licenca je najstroža CC licenca. Osnovni opis Licence: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/deed.sr_LATN. Sadržaj ugovora u celini: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/legalcode.sr-Latn
Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 22.03.2019.
Other responsibilities
mentor
Nikolić, Saša V. 1967-
član komisije
Stančić, Goran
član komisije
Milovanović, Gradimir
član komisije
Nikolić, Tatjana
član komisije
Lekić, Predrag
Academic Expertise
Tehničko-tehnološke nauke
University
Univerzitet u Nišu
Faculty
Elektronski fakultet
Group
Katedra za elektroniku
Alternative title
IIR multiple-notch filters design and realization
Publisher
[I. B. Кrstić]
Format
VIII, 119 listova
description
Biografija autora: list 119;
Bibliografija: listovi 99-118.
description
Digital signal processing
Abstract (en)
New IIR multiple-notch filters design methods, whose utilization
lead to complete satisfaction of specifications regarding positions
of notch frequencies and notch-bandwidths defined for an arbitrary
attenuation value at cutoff frequencies, are investigated in
this thesis. Most of the proposed design methods offer the possibility
of further pass-bands magnitude response improvement
by increasing the order of the filter. On the other hand, since
proposed design methods are based on the assumption that IIR
multiple-notch filter with desired magnitude response can be obtained
by parallel connection of the delay line and the stable allpass
filter, pass-bands magnitude response improvement is followed
by the improvement of linearity of the pass-bands phase
response. Comparison with the existing IIR multiple-notch filter
design methods showed that proposed design methods could result
in shorter duration of transient response to sum of sinusoidal
interferences, as well as in improvement of pass-bands phase response.
Sensitivity of the IIR multiple-notch filter’s magnitude response
to coefficient quantization is considered from the point of view
of the right choice of existing (standard) and development of the
new realization structures. Algorithm for determination of the
multipliers coefficients’ quantized values such that needed number
of bits for theirs representation is minimized, as well as the
algorithm for determination of the optimal representations of the
all-pass filter transfer function (characterizing the IIR multiplenotch
filter), realized by cascade connection of the first- and
second-order nonstandard all-pass sections, are proposed. Efficiency
of the proposed algorithms is verified through several examples.
General conclusion is that significant reduction in total
number of bits needed for representation of multipliers coefficients
can be achieved if nonstandard realization structures are used.
Authors Key words
uskopojasni digitalni filtar nepropusnih opsega, filtar
svepropusnih frekvencija, simetričnost amplitudske kara-
kteristike oko centralnih frekvencija nepropusnih opsega,
osetljivost amplitudske karakteristike na zaokruživanje
vrednosti koeficijenata množača, realizacione strukture,
optimalni načini predstave prenosne funkcije
Authors Key words
digital multiple-notch filter, all-pass filter, symmetrical magnitude
response about notch frequencies, sensitivity of the magnitude
response to coefficients quantization, realization structures,
optimal transfer function’s forms
Classification
621.372.544:[004.424.36:621.391(043.3)
Subject
((621.372+621.372.544): 004.424.36):621.38
Subject
T170
Type
Tekst
Abstract (en)
New IIR multiple-notch filters design methods, whose utilization
lead to complete satisfaction of specifications regarding positions
of notch frequencies and notch-bandwidths defined for an arbitrary
attenuation value at cutoff frequencies, are investigated in
this thesis. Most of the proposed design methods offer the possibility
of further pass-bands magnitude response improvement
by increasing the order of the filter. On the other hand, since
proposed design methods are based on the assumption that IIR
multiple-notch filter with desired magnitude response can be obtained
by parallel connection of the delay line and the stable allpass
filter, pass-bands magnitude response improvement is followed
by the improvement of linearity of the pass-bands phase
response. Comparison with the existing IIR multiple-notch filter
design methods showed that proposed design methods could result
in shorter duration of transient response to sum of sinusoidal
interferences, as well as in improvement of pass-bands phase response.
Sensitivity of the IIR multiple-notch filter’s magnitude response
to coefficient quantization is considered from the point of view
of the right choice of existing (standard) and development of the
new realization structures. Algorithm for determination of the
multipliers coefficients’ quantized values such that needed number
of bits for theirs representation is minimized, as well as the
algorithm for determination of the optimal representations of the
all-pass filter transfer function (characterizing the IIR multiplenotch
filter), realized by cascade connection of the first- and
second-order nonstandard all-pass sections, are proposed. Efficiency
of the proposed algorithms is verified through several examples.
General conclusion is that significant reduction in total
number of bits needed for representation of multipliers coefficients
can be achieved if nonstandard realization structures are used.
“Data exchange” service offers individual users metadata transfer in several different formats. Citation formats are offered for transfers in texts as for the transfer into internet pages. Citation formats include permanent links that guarantee access to cited sources. For use are commonly structured metadata schemes : Dublin Core xml and ETUB-MS xml, local adaptation of international ETD-MS scheme intended for use in academic documents.