Q301
Open questionFourier transform F(jω) of an arbitrary real signal has the property.
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Signal Processing
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Q302
Open questionThe pole-zero diagram of the system:
is represented by:
is represented by:
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Q303
Open questionThe required roll-off rate of the frequency response of an anti-aliasing filter will create problems in its design if
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Q304
Open questionThe impulse δ(t) and unit step function u(t) are related to each other as:
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Q305
Open questionIf a signal f(t) has energy E, the energy of the signal f(2t) is equal to
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Q306
Open questionA 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?
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Q307
Open questionWhat is the spectral density of white noise?
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Q308
Open questionA 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:
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Q309
Open questionA rectangular pulse of amplitude A and time duration Z is applied to be matched filter. Its maximum SNR is
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Q310
Open questionThe ROC of anti-causal sequence is:
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Q311
Open questionThe discrete equation y(n + 1) + 0.5ny(n) = 0.5x(n + 1) is not attributable to a
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Q312
Open questionWhich one of the following systems is a causal system?
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Q313
Open questionThe impulse response h[n] of a linear time-invariant system is given by h[n] = u[n + 3] + u[n - 2] - 2u[n - 7] where u[n] is the unit step sequence. The above system is
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Q314
Open questionIf z0 is a zero of a (real-valued) linear-phase FIR filter then following is/are also zero/zeros of a (real-valued) linear-phase FIR filter,
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Q315
Open questionA non zero DC signal pass through a low pass filter then output is
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Q316
Open questionIt is possible to compute the cross-correlation Rxy(τ) between two signals x(t) and y(t) directly from their convolution provided
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Q317
Open questionA discrete LTI system is non-causal if its impulse response is
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Q318
Open questionThe linear constant coefficient difference equation lead to
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Q319
Open questionIf the lower limit of Region of Convergence (ROC) is greater than the upper limit of ROC, the series
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Q320
Open questionA rectangular pulse train s(t) as shown in the figure is convolved with the signal cos2(4π × 103t). The convolved signal will be a
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