1. Fourier transform F(jω) of an arbitrary real signal has the property.
2. The pole-zero diagram of the system:
$$H\left( z \right) = \frac{{1 - az}}{{z - a}}$$ is represented by:
$$H\left( z \right) = \frac{{1 - az}}{{z - a}}$$ is represented by:
3. The required roll-off rate of the frequency response of an anti-aliasing filter will create problems in its design if
4. The impulse δ(t) and unit step function u(t) are related to each other as:
5. If a signal f(t) has energy E, the energy of the signal f(2t) is equal to
6. A discrete-time all-pass system has two of its poles at 0.25∠0° and 2∠30° which one of the following statements about the system is TRUE?
7. What is the spectral density of white noise?
8. A causal LTI filter has the frequency response as shown in Fig. If input signal to filter is x(t) = e-jt, then filter output will be:
9. A rectangular pulse of amplitude A and time duration Z is applied to be matched filter. Its maximum SNR is
10. The ROC of anti-causal sequence is:
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