Digital Signal Processing Practice Test 8

1. If A=\(\frac{-Ω_1^2+Ω_u Ω_l}{Ω_1 (Ω_u-Ω_l)}\) and B=\(\frac{Ω_2^2-Ω_u Ω_l}{Ω_2 (Ω_u-Ω_l)}\), then which of the following is the backward design equation for a low pass-to-band pass transformation?

2. Which of the following is a low pass-to-band pass transformation?

3. The poles obtained from matched z-transform are identical to poles obtained from which of the following transformations?

4. When an application requires a linear phase filter, it should be an FIR filter.

5. Which of the following is a low pass-to-high pass transformation?

6. When σ>0, then what is the condition on 'r'?

7. The following frequency characteristic is for which of the following filter?

8. It is better to perform the mapping from an analog low pass filter into a digital low pass filter by either of these mappings and then perform the frequency transformation in the digital domain.

9. The degree to which the design technique produces acceptable filter designs depends in part on the number of filter coefficients selected.

10. Which of the following in z-domain is equal to s-domain of second order derivate?