Passing the result through H(z)
A. (i),(ii),(iii),(iv)
B. (iii),(i),(ii),(iv)
C. (ii),(iii),(iv),(i)
D. (i),(iii),(iv),(ii)
Answer:A
Passing the result through H(z)
A. (i),(ii),(iii),(iv) B. (iii),(i),(ii),(iv) C. (ii),(iii),(iv),(i) D. (i),(iii),(iv),(ii)
Explanation: If the restriction on physical reliability is removed, it is possible to obtain a linear phase IIR filter, at least in principle. This approach involves performing a time reversal of the input signal x(n), passing x(-n) through a digital filter H(z), time reversing the output of H(z), and finally, passing the result through H(z) again.