Digital Signal Processing Practice Test 5

1. What is the system function of the second filter other than comb filter in the realization of FIR filter?

None of the mentioned

\(\sum_{k=0}^{M-1} \frac{H(k+α)}{1+e^{\frac{j2π(k+α)}{M}} z^{-1}}\)

\(\sum_{k=0}^{M-1} \frac{H(k+α)}{1-e^{\frac{j2π(k+α)}{M}} z^{-1}}\)

\(\sum_{k=0}^M \frac{H(k+α)}{1-e^{\frac{j2π(k+α)}{M}} z^{-1}}\)

2. The basic elements of a flow graph are branches and nodes.

True

False

3. In Bilinear Transformation, aliasing of frequency components is been avoided.

True

False

4. Which of the following is the correct representation of a floating point number X?

M.2^E(1/2<M<1)

None of the mentioned

2M.2^E(1/2<M<1)

2^E

5. Which of the following gives the complete definition of the state of a system at time n₀?

Input signal x(n) for n≥n₀ determines output signal for n≥n₀

Input signal x(n) for n≥0 determines output signal for n≥n₀

Amount of information at n₀+input signal x(n) for n≥n₀ determines output signal for n≥n₀

Amount of information at n₀ determines output signal for n≥n₀

6. In equation ℴ = \(\frac{2}{T}(\frac{r^2-1}{1+r^2+2rcosω})\) if r < 1 then ℴ < 0 and then mapping from s-plane to z-plane occurs in which of the following order?

All of the mentioned

None of the mentioned

RHP in s-plane maps into the outside of the unit circle in the z-plane

LHP in s-plane maps into the inside of the unit circle in the z-plane

7. The determinant |F-λI|=0 yields the characteristic polynomial of the matrix F.

False

True

8. If M and N are the orders of numerator and denominator of rational system function respectively, then how many memory locations are required in direct form-I realization of that IIR filter?

M+N

M+N+1

M+N-2

M+N-1

9. In equation ℴ = \(\frac{2}{T}(\frac{r^2-1}{1+r^2+2rcosω})\), if r > 1 then ℴ > 0 and then mapping from s-plane to z-plane occurs in which of the following order?

None of the mentioned

RHP in s-plane maps into the outside of the unit circle in the z-plane

All of the mentioned

LHP in s-plane maps into the inside of the unit circle in the z-plane

10. If the input analog signal falls outside the range of the quantizer (clipping), e_q (n) becomes unbounded and results in _____________

Particulate noise

Heavy noise

Overload noise

Granular noise