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electricalstudent Latest Questions

Asked: July 21, 2023In:
expert

Consider the signal x(t) with Fourier transform as shown

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Asked: July 21, 2023In:
Venkyelectrical
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14.13 Find the poles and the transfer function of a third-order Butterworth filter with ωp = 1 rad/s, Amax = 3 dB , and the dc gain is unity. Poles: a real pole at s = −1 and a pair of ...

microelectronics by sedra & smith chapter 14 exercise questions
Asked: July 9, 2023In:
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Asked: July 21, 2023In:
Venkyelectrical
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D14.14 Find the attenuation provided at ω = 2ωp by a seventh-order Chebyshev filter with a 0.5-dB passband ripple. If the passband ripple is allowed to increase to 1 dB, by how much does the stopband attenuation increase? 64.9 dB; 3.3 ...

microelectronics by sedra & smith chapter 14 exercise questions
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On: November 1, 2023 Comments: 0

3. In this question, we use MATLAB to implement a sampling and reconstruction of the signal f(t) = (5 sin(87t) + 6 sin(167t), Osts 0, otherwise a (a) Use MATLAB to plot the signal for

3. In this question, we use MATLAB to implement a sampling and reconstruction of the signal f(t) = (5 sin(87t) + 6 sin(167t), Osts 0, otherwise a (a) Use MATLAB to plot the signal for
Auto Draft
(more…)
On: November 1, 2023 Comments: 0

generate AM signal in time domain and frequency spectrum using MATLAB

Below is a good starting point for your program:

% Clear and initialize variables

clear
close all
hold off
N=2^18; % Number of sample points
Fs=2^14; % sample frequency is 16,384 Hz is to be power of 2
% because we are using the FFT and not the DFT
Ts=1/Fs;
fc=1000; % carrier frequency is 1 kHz
fm=100; Ac=10; % message frequency is 100 Hz, amplitude is 10
mu2=1.0; % 100% modulation
mu1=0.5; % 50% modulation
t=(0:N-1)*Ts; % Time vector

a complete executable matlab code is pasted below

(more…)
On: October 31, 2023 Comments: 0

P2.4Let x(n) = {2,4, -3, 1, -5, 4, 7}. Generate and plot the samples (use the stem function) of the following sequences.

P2.4
Let x(n) = {2,4, -3, 1, -5, 4, 7}. Generate and plot the samples (use the stem function) of
the following sequences.

  1. x1(n) = 2x(n – 3) + 3x(n + 4) – x(n)
  2. x2 (n) = 4x(4 + n) + 5x(n + 5) + 2x(n)
  3. x3 (n) = x(n + 3)x(n – 2) + x(1 – n)x(n + 1)
  4. x4 (n) = 2e0.5𝑛x(n) + cos(0.1πn) x(n + 2) , -10 ≤ n ≤ 10

sigshift.m is required for this which is attached here

unction [y,n] = sigshift(x,m,n0)

% implements y(n) = x(n-n0)

% -------------------------

% [y,n] = sigshift(x,m,n0)

%

n = m+n0; y = x;
(more…)
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