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$H(z)=\frac{1-z^{-1}}{(1-0.2z^{-1} -0.15z^{-2)}}$ 1.Find the difference equation 2.Draw Direct Form-I and Direct Form-II realization structure. 3.Draw cascade form, parallel form realization.
In a certain concert hall, echoes of the original audio signal x(n) are generated due to the reflections at the walls and ceiling. The audio signal experienced by the listener y(n) is a combination of x(n) and its echoes. Let ...
Below is a good starting point for your program:
% Clear and initialize variablesclear
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…)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.
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;