
Obrada i analiza signala 1
Quiz
•
Mathematics, Science, Computers
•
University
•
Medium
Igor Vujović
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Izbacite ono što nije svojstvo Fourierove transformacije.
Linearnost
Simetrija
Vremensko integriranje
Mulitplikativnost
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Najkorisnije transformacije su:
Inverzibilne
Irevezibilne
Iracionalne
Entropijske
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koje svojstvo konvolucije je prikazano na slici?
Komutacija
Asocijacija
Distribucija
Linearnost
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Ako je A=1, a T=2 i uvrste se te vrijednosti, kako je matematički opisan valno oblik sa slike?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nađite period signala .
48
16
3
24
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Odredite FT zadanog signala sa slike ako je A=2 [V], a T= 3 [s].
12sin(3ω)/3ω
4sin(3ω)/3ω
3sin(3ω)/3ω
12sin(3ω)/3
12sin(4ω)/2ω
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Odredite ukupnu energiju povezanu s funkcijom f(t)=e-tu(t).
0,25
50
2
20
0,5
8.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
O čemu govori Parsevalova relacija?
O tome da je zbroj snaga spektralnih komponenti jednak snazi u vremenskom području za isti signal.
Ukupna snaga u periodičnom signalu je zbroj svih snaga svih harmonika.
Sve je isto u kojoj domeni računamo energiju(snagu), jer je ona nepromijenjena u svakoj domeni (npr. t i f-domena).
Snaga se može točno odrediti bez obzira na rezoluciju u pojedinoj domeni.
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