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Title:
VGRAJENI SISTEM ZVOČNEGA SPEKTRALNEGA ANALIZATORJA
Authors:
ID
Pahor, Gregor
(
Author
)
ID
Kramberger, Iztok
(
Mentor
)
More about this mentor...
Files:
UNI_Pahor_Gregor_2013.pdf
(2,26 MB)
MD5: 8121AA0FACCA5A9D2D6C7C4A123DC897
PID:
20.500.12556/dkum/192a545a-bfa2-41a0-9f97-ef56b312cc36
Language:
Slovenian
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FERI - Faculty of Electrical Engineering and Computer Science
Abstract:
V začetku diplomske naloge smo razložili osnovne pojme spektralnega analizatorja torej kaj je spekter in zakaj sploh želimo analizirati spekter nekega signala. Ker naše delo temelji na FFT spektralnem analizatorju smo v nadaljevanju podrobno opisali kako deluje hitra Fouriereva transformacija (FFT). Po opisu delovanja FFT smo nato še opisali lastnosti FFT spektralnega analizatorja in si pogledali njegovo zgradbo. Nato je sledil opis delovanja in zgradbe našega spektralnega analizatorja. Opisali smo analogno vhodno stopnjo, ki ji je sledila še digitalna obdelava signala z mikrokrmilnikom in prikaz rezultata na zaslon. Izvedene so bile tudi meritve širine in razločljivosti spektra.
Keywords:
vgrajeni sistem
,
zvok
,
analizator
,
spekter
,
Fouriereva transformacija
Place of publishing:
Maribor
Publisher:
[G. Pahor]
Year of publishing:
2012
PID:
20.500.12556/DKUM-38096
UDC:
004.451:004.5(043.2)
COBISS.SI-ID:
16665878
NUK URN:
URN:SI:UM:DK:GIHR9P2V
Publication date in DKUM:
18.02.2013
Views:
1511
Downloads:
168
Metadata:
Categories:
KTFMB - FERI
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Secondary language
Language:
English
Title:
EMBEDDED SYSTEM FOR AUDIO SPECTRUM ANALYZER
Abstract:
At the beginning of diploma thesis, we explained the basic concepts of spectrum analyzer, for example what the spectrum is and why we want to analyze the signal spectrum. Since our work is based on a FFT spectrum analyzer we followed a detail description on how does the fast Fourier transform (FFT) work. After a description of FFT we also described the features of FFT based spectrum analyzer and looked at its structure. Furthermore we explained the structure of our spectrum analyzer and how it works. We also described the analog input stage, which was followed by digital signal processing with microcontroller and the result shown on the display. We also measured the width and resolution of spectrum.
Keywords:
embedded system
,
sound
,
analyzer
,
spectrum
,
Fourier transform
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