DSP question 71 Which filter design method requires the high

DSP question

7.1 Which filter design method requires the highest order to meet the specifications?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.2 Which filter design method requires the lowest order to meet the specifications?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.3 Which of the 4 design methods produces a stable filter?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic
e) All of the above

7.4 Filters designed with these 4 IIR methods have linear phase?
a) True
b) False

7.5 Which filter is equiripple in the stopband and monotonic in the passband?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.6 Which filter is monotonic in the stopband and equiripple in the passband?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.7 Which filter is equiripple in the both the passband and the stopband?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.8 Which filter is monotonic in the both the passband and the stopband?
a) Butterworth
b) Chebychev I
c) Chebychev II
d) Elliptic

7.9 For the filters which are monotonic in the stopband, where are all the zeros located?
a) z=1
b) z=exp(j*pi/2)
c) z= -1
d) z=exp(-j*pi/2)

7.1 (a)Butterworth

7.2 (d)Elliptic

7.3 (a)Butterworth

7.4 (a)True

7.5 (c)Chebychev II

7.6 (d)Elliptic

7.7 (d)Elliptic

7.8 (b)Chebychev I

7.9 (c)Z= -1