Define sampling and quantization of a continuous-time signal x(... | Filo
Define sampling and quantization of a continuous-time signal x(... | Filo
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1. Consider a sequence x[n] obtained by sampling a continuous-time signal x[n] = xc(nT) andxc(t) = 5 10 cos(80π t) - 10 sin(50π t).(a) Plot the magnitude and phase spectra of Xc(jΩ).(b) Plot the magnitude spectra of X(e^jω) = (1)/(T)∑k=-∞^∞ Xc ( j(ω)/(T) - j(2π k)/(T)) when T = 0.01.(c) Do the same problem in part (b) except T = 0.02?(d) What is the maximum sampling frequency fs so that the frequency aliasing can be avoided?
1. Consider a sequence x[n] obtained by sampling a continuou…
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Chapter 4: Sampling of Continuous Time Processing of the Contin... | Filo
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A continuous-time signal x(t) is obtained at the output of an ideal lowpass filter with cutoff frequency ωc=1,000 π. If impulse-train sampling is performed on x(t) which of the following sampling periods would guarantee that x(t) can be recovered from its sampled version using an appropriate lowpass filter? (a) T=0.5 ×10^-3 (b) T=2 ×10^-3 (c) T=10^-4 | Numerade
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