EEG signal ima 1000 uzoraka. Koliki je odnos operacija kompleksnog množenja DFT/FFT?

OAS_kol2_popr

Quiz
•
Science, Computers, Mathematics
•
University
•
Hard

Igor Vujović
Used 8+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
666,66
0,0015
1
1000
333,33
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koliko je potrebno zbrajanja prilikom izvođenja brze FT postupkom drugog korijena, ako signal ima 100 uzoraka?
10000
9900
199
9999
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Za izravnu realizaciju tipa I IIR filtra potrebno je:
M+N zbrajanja
max(M,N) memorijskih lokacija
M+N+1 množenja
M+N+1 zbrajanja
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Potiskivanje greške kvantizacije u audio sustavima moguće je postići:
dodavanjem dither šuma
dodavanje jittera
korištenjem ružičastog šuma
komplementom broja 2
interleavingom
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
S kojom frekvencijom treba uzorkovati signal u(t)=sin(2t) + 10cos(t/2π) prema poučku o uzorkovanju?
2/π [Hz]
0,6 [Hz]
1/π [Hz]
1,26 [Hz]
0,31831 [Hz]
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Koliki je DFT od x={0, 1}?
{1 0}
{1 1}
{0 1}
{1}
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Inverzna Z-transformacija je:
8.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Zahtjev na interpolacijski filtar nije:
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