compute the following using matlab with a few lines explaination 3. Consider a signal r(t) = 4cos(2t) defined for -o

As we will see later, the sampling period of x(t) with a frequency of Ωmax = 2πfmax = 2π should…

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3. Consider a signal #(t) = 4cos(2t) defined for -

Database System Concepts

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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

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Question

compute the following using matlab with a few lines explaination

3. Consider a signal r(t) = 4cos(2t) defined for -o <t< o. For (i) T, = 0.1 (ii) T, = 0.5 (iii) T, = 1,
plot a discrete-time signal r[n] = r(nT,) for 0 <t <3 (use subplot to plot all the figures as one figure).
Also, determine for which of the given values of T, the discrete-time signal has lost the information in
the continuous-time signal
4. Plot the signal r(t) = u(t + 1)u(t – 1) without and with using the command heaviside
%3D

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