03 025 蓋0.2 0.15 0.1 o o5 ·10-8-6 4610 phase -2 -2
8- t= 0: .01:4; 9- to = 4; 10- fo =1/4; 11- j =sqrt (-1); 12- ao#1/4; 13-bo0; 14 15 16 17 18 19 %% Part 2 -10:10: 21 %ak ( (-2-j ) ./ (3"p1. *k) ) + ( ( (-1) .^k) . / (pi. * k) ) ; the one i used stem (k, abs (ak)) 23 - 24 title ('magnitude); 25 xlabel ('k 26 ylabel ('ak'); 27-figure 28 29 stem(k,angle (ak)); 30 - 31 xlabel (' 32ylabel ('1/-ak); 33-figure title ('phase)
Homework Answers
The reason why it is not getting plotted at K =0 is because you have a singularity while calculating a0 from ak and Matlab cannot resolve it and outputs NaN for k=0.
Therefore you need to wisely compute the value of a0 and assign it to the corresponding cell of the vector ak the procedure is given below as how to obtain a0 from ak
Add Answer to:
Project in matlab. I have the correct ak value but not the correct ao value. My code is attached ...
I wrote a Matlab program for the figure below. When I plot the waves, they look...
I wrote a Matlab program for the figure below. When I plot the waves, they look the same. Why do the two waves frequencies look same and How do I avoid it? (I really do need this part of the question answered.) N = 200; % Total number of time domain samples in simulation. Fs = 100 ;% sampling frequency. F1 = 10; % frequency of wave - 1. F2 = 90; % frequency of wave - 2. phi =...
Hello, i have this matlab code where i have to track a red ball from and...
Hello, i have this matlab code where i have to track a red ball from and uploaded video, and plot its direction in x-y direction My Question is how can i add x vs time plot and y vs time plot in this code. Thank you if exist('V','var') delete(V); end clear;clc; V=VideoReader('video.mp4'); figure(1); x=[];y=[]; i=1; while hasFrame(V) J=readFrame(V); figure(1);imshow(J);title(['Frame No. ',num2str(i)]); if (i>=28 && i<=132) bw=J(:,:,1)>200 & J(:,:,2)<80 & J(:,:,3)<80; bw=imfill(bw,'holes'); A=regionprops(bw,'Centroid'); x(end+1)=A.Centroid(1); y(end+1)=A.Centroid(2); hold on; plot(x,y,'*k');hold off; end i=i+1;...
MATLAB code starts here --------- clear T0=2; w0=2*pi/T0; f0=1/T0; Tmax=4; Nmax=15; %--- i=1; for t=-Tmax: .01:Tmax...
MATLAB
code starts here ---------
clear
T0=2;
w0=2*pi/T0;
f0=1/T0;
Tmax=4;
Nmax=15;
%---
i=1;
for t=-Tmax: .01:Tmax
T(i)=t;
if t>=(T0/2)
while (t>T0/2)
t=t-T0;
end
elseif t<=-(T0/2)
while (t<=-T0/2)
t=t+T0;
end
end
if abs(t)<=(T0/4)
y(i)=1;
else
y(i)=0;
end
i=i+1;
end
plot(T,y),grid, xlabel('Time (sec)'); title('y(t) square wave');
shg
disp('Hit return..');
pause
%---
a0=1/2;
F(1)=0; %dc freq
C(1)=a0;
for n=1:Nmax
a(n)=(2/(n*pi))*sin((n*pi)/2);
b(n)=0;
C(n+1)=sqrt(a(n)^2+b(n)^2);
F(n+1)=n*f0;
end
stem(F,abs,(C)), grid, title(['Line Spectrum: Harmonics = '
num2str(Nmax)]);
xlabel('Freq(Hz)'), ylabel('Cn'), shg
disp('Hit return...');
pause
%---
yest=a0*ones(1,length(T));
for n=1:Nmax
yest=yest+a(n)*cos(2*n*pi*T/T0)+b(n)*sin(2*n*pi*T/T0);...
modify this code is ready % Use ODE45 to solve Example 4.4.3, page 205, Palm 3rd...
modify this code is ready
% Use ODE45 to solve Example 4.4.3, page 205, Palm 3rd
edition
% Spring Mass Damper system with initial displacement
function SolveODEs()
clf %clear any existing plots
% Time range Initial Conditions
[t,y] = ode45( @deriv, [0,2], [1,0] );
% tvals yvals color and style
plot( t, y(:,1), 'blue');
title('Spring Mass Damper with initial displacement');
xlabel('Time - s');
ylabel('Position - ft');
pause % hit enter to go to the next plot
plot( t, y(:,2), 'blue--');...
This is a MATLAB Question. Below is my base code for a Fourier Series of a...
This is a MATLAB Question. Below is my base code for a Fourier
Series of a half triangle wave.
So I am being asked to isolate the first 8 components so that
only those first 8 components of the half triangle function are
calculated by MATLAB fft function, and then afterwards I am asked
to do the same thing but with the first 20 components rather than
the first 8. How do I isolate the first x number of components...
1. Use the MATLAB command freqz to calculate the DTFT of System 1, to find its frequency response...
1. Use the MATLAB command freqz to calculate the DTFT of System 1, to find its frequency response 0.25r[n] + 0.25r|n -2]. H(). For this exercise, System 1 has a different difference equation yn] Find H1 (w) for- aK π, with frequency steps of Δα-π/100. 2. Plot both the magnitude |H1(2)| and the phase LH1(w) vs w, for-π < ώ < π. Use abs and angle commands to obtain magnitude and phase. Label and title both plots and include in...
Program from problem 1: (Using MATLAB) % Sampling frequency and sampling period fs = 10000; ts...
Program from problem 1: (Using MATLAB)
% Sampling frequency and sampling period
fs = 10000;
ts = 1/fs;
% Number of samples, assume 1000 samples
l = 1000;
t = 0:1:l-1;
t = t.*ts; % Convert the sample index into time for generation and
plotting of signal
% Frequency and amplitude of the sensor
f1 = 110;
a1 = 1.0;
% Frequency and amplitude of the power grid noise
f2 = 60;
a2 = 0.7;
% Generating the sinusoidal waves...
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to d...
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to determine the frequency response of a signal or system by taking the Fourier Transform empirically (rather than computing it analytically). To do so we make use of the fft and fftshift commands. The fft command is an efficient implementation of the Discrete Fourier Transform (DFT) known as the Fast Fourier Transform (FFT). When the FFT is computed the samples are...
I need this program in MATLAB with different or another code. INPUT: x = [0 1...
I need this program in MATLAB with different or another code. INPUT: x = [0 1 8 12 27]; y = [1 2 3 4 5]; nx = length(x); ny = length(y); n = length(x); if nx ~= ny display('Error. La cantidad de datos en x no es igual que los datos en y') end Sx = sum(x); Sxx = sum(x.^2); Sy = sum(y); Sxy = sum(x.*y); a1 = (n*Sxy - Sx*Sy)/(n*Sxx-(Sx)^2); a0 = (Sxx*Sy - Sxy*Sx)/(n*Sxx - (Sx)^2); m...
please help me with this MATLAB CODE and explain to me what each line does and...
please help me with this MATLAB CODE and
explain to me what each line does and what is used for?
leave your comments as words, not as pictures.
.....................................................................................................................................................................
clear all; close all; % For a script file, you better start with
clear all and close all
% However, for a fucntion, you better NOT to start
% with them
%% End of cell mode example
%% Plot function
t = 0:0.1:5;
x1 = sin(2*5*t); x2 = cos(3*7*t);...
MATLAB
code starts here ---------
clear
T0=2;
w0=2*pi/T0;
f0=1/T0;
Tmax=4;
Nmax=15;
%---
i=1;
for t=-Tmax: .01:Tmax
T(i)=t;
if t>=(T0/2)
while (t>T0/2)
t=t-T0;
end
elseif t<=-(T0/2)
while (t<=-T0/2)
t=t+T0;
end
end
if abs(t)<=(T0/4)
y(i)=1;
else
y(i)=0;
end
i=i+1;
end
plot(T,y),grid, xlabel('Time (sec)'); title('y(t) square wave');
shg
disp('Hit return..');
pause
%---
a0=1/2;
F(1)=0; %dc freq
C(1)=a0;
for n=1:Nmax
a(n)=(2/(n*pi))*sin((n*pi)/2);
b(n)=0;
C(n+1)=sqrt(a(n)^2+b(n)^2);
F(n+1)=n*f0;
end
stem(F,abs,(C)), grid, title(['Line Spectrum: Harmonics = '
num2str(Nmax)]);
xlabel('Freq(Hz)'), ylabel('Cn'), shg
disp('Hit return...');
pause
%---
yest=a0*ones(1,length(T));
for n=1:Nmax
yest=yest+a(n)*cos(2*n*pi*T/T0)+b(n)*sin(2*n*pi*T/T0);...
modify this code is ready
% Use ODE45 to solve Example 4.4.3, page 205, Palm 3rd
edition
% Spring Mass Damper system with initial displacement
function SolveODEs()
clf %clear any existing plots
% Time range Initial Conditions
[t,y] = ode45( @deriv, [0,2], [1,0] );
% tvals yvals color and style
plot( t, y(:,1), 'blue');
title('Spring Mass Damper with initial displacement');
xlabel('Time - s');
ylabel('Position - ft');
pause % hit enter to go to the next plot
plot( t, y(:,2), 'blue--');...
This is a MATLAB Question. Below is my base code for a Fourier
Series of a half triangle wave.
So I am being asked to isolate the first 8 components so that
only those first 8 components of the half triangle function are
calculated by MATLAB fft function, and then afterwards I am asked
to do the same thing but with the first 20 components rather than
the first 8. How do I isolate the first x number of components...
1. Use the MATLAB command freqz to calculate the DTFT of System 1, to find its frequency response 0.25r[n] + 0.25r|n -2]. H(). For this exercise, System 1 has a different difference equation yn] Find H1 (w) for- aK π, with frequency steps of Δα-π/100. 2. Plot both the magnitude |H1(2)| and the phase LH1(w) vs w, for-π < ώ < π. Use abs and angle commands to obtain magnitude and phase. Label and title both plots and include in...
Program from problem 1: (Using MATLAB)
% Sampling frequency and sampling period
fs = 10000;
ts = 1/fs;
% Number of samples, assume 1000 samples
l = 1000;
t = 0:1:l-1;
t = t.*ts; % Convert the sample index into time for generation and
plotting of signal
% Frequency and amplitude of the sensor
f1 = 110;
a1 = 1.0;
% Frequency and amplitude of the power grid noise
f2 = 60;
a2 = 0.7;
% Generating the sinusoidal waves...
Exercise 4. Computing and displaying the Fourier Transform of a signal Later in the semester it will become useful to determine the frequency response of a signal or system by taking the Fourier Transform empirically (rather than computing it analytically). To do so we make use of the fft and fftshift commands. The fft command is an efficient implementation of the Discrete Fourier Transform (DFT) known as the Fast Fourier Transform (FFT). When the FFT is computed the samples are...
please help me with this MATLAB CODE and
explain to me what each line does and what is used for?
leave your comments as words, not as pictures.
.....................................................................................................................................................................
clear all; close all; % For a script file, you better start with
clear all and close all
% However, for a fucntion, you better NOT to start
% with them
%% End of cell mode example
%% Plot function
t = 0:0.1:5;
x1 = sin(2*5*t); x2 = cos(3*7*t);...
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