I need help in MATLAB. I'm working on a circuits lab report and I want to...
I need help in MATLAB. I'm working on a circuits lab report and I want to plot the derivative of an input signal. The circuit is a differentiator OpAmp. It is receiving a triangle wave as an input and should output a square wave. (I've included my existing code.)
The output formula is:
Vout = -(Rf)*C*(dVin/dt) Where Rf is feedback resistance: Rf = 1*10^6; and C = 1*10^-6.
EXISTING CODE:
%% This section is copied, and then modified from another problem for use as the input.
%%Does not need to be changed.
clc
clear all
close all
R1 = 1000;
C1 = (1*10^-3);
t = linspace(0,20);
In1 = square(t);
f=@(t) [2*[(-1/(R1*C1))*(integral(@(t) square(t),0,t))]/(3)]+1;
for i=1:numel(t)
Vo1(i) = f(t(i));
end
%% Setting up new circuit values.
Rf = 1*10^6;
C2 = 1*10^-6;
%% Now I need to use the outut of the modified previous problem as input.
% Vout = -(R_feedback)*C*[d(Vin)/dt] *Again Vin here, is Vo1 from
% the previous problem.*
%
%% I originally thought this was where my mistake was, however I believe its actually in the subplot.
% My answers for Vo2 in the array are oscillating the way a square wave does, but it doesn't plot properly.
Vo2 = -Rf*C2*diff(Vo1)
%% Plotting outputs.
subplot(2,1,1)
plot(t/pi,Vo1,'r.-')
title('Input Voltage')
xlabel('t')
ylabel('V(t)')
xlim([0 5])
ylim([-1.5, 1.5])
grid on
subplot(2,1,2)
plot(t/pi,Vo2,'g.-')
title('Inverted Output Voltage')
xlabel('t')
ylabel('V(t)')
xlim([0 5])
grid on
Homework Answers
%the diff function returns a vector of length 1 less than the original , since it calculates the difference. Thats why it gave error because you tried plotting it against the same length t vector. I skipped the last t value, so now it plots.
%% This section is copied, and then modified from another problem for use as the input.
%%Does not need to be changed.
clc
clear all
close all
R1 = 1000;
C1 = (1*10^-3);
t = linspace(0,20);
In1 = square(t);
f=@(t) [2*[(-1/(R1*C1))*(integral(@(t) square(t),0,t))]/(3)]+1;
for i=1:numel(t)
Vo1(i) = f(t(i));
end
%% Setting up new circuit values.
Rf = 1*10^6;
C2 = 1*10^-6;
%% Now I need to use the outut of the modified previous problem as input.
% Vout = -(R_feedback)*C*[d(Vin)/dt] *Again Vin here, is Vo1 from
% the previous problem.*
%
%% I originally thought this was where my mistake was, however I believe its actually in the subplot.
% My answers for Vo2 in the array are oscillating the way a square wave does, but it doesn't plot properly.
Vo2 = -Rf*C2*diff(Vo1)
%% Plotting outputs.
subplot(2,1,1)
plot(t/pi,Vo1,'r.-')
title('Input Voltage')
xlabel('t')
ylabel('V(t)')
xlim([0 5])
ylim([-1.5, 1.5])
grid on
subplot(2,1,2)
plot(t(1:end-1)/pi,Vo2,'g.-')%change made, plotting against t with last value unused
title('Inverted Output Voltage')
xlabel('t')
ylabel('V(t)')
xlim([0 5])
grid on
Add Answer to:
I need help in MATLAB. I'm working on a circuits lab report and
I want to...
Reproduce Figures 9.2b and 9.2c on MATLAB, assuming that the square wave (Figure 9.2b) is a...
Reproduce Figures 9.2b and 9.2c on MATLAB, assuming that the
square wave (Figure 9.2b) is a periodic symmetric square wave of
normalized amplitude (A=1). Each student group should
decide the power spectral density level of the channel noise.
Compute the Fourier transform of the periodic square wave.
clear all
close all
%%%%
T=12*pi; %number of period
x=linspace(0,T);
t=x/pi
y0=square(x); %square wave signal
y0ft=fft(y0); %calculating Fourier Transformof signal
y0fts=fftshift(y0ft);
y0ftFinal=abs(y0ft);
AWGN= rand(size(x)); %Calculating whit noise
Att=(1/3);
nSig= Att*AWGN;
y=y0+nSig; %Square wave...
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 =...
Need help with this simple MATLAB code. I'm trying to plot a new set of Y...
Need help with this simple MATLAB code. I'm trying to plot a new set of Y values from input X values. I get an error that says: "not enough input arguments." clear all clc close all Q = 3.44E+18; D = 1.51E-17; t = 7200; x = [1E-6 2E-6 2.5E-6 3E-6 4.32E-6]; y = Q/sqrt((pi*D*t))*exp^(-(x)^2/(4*D*t)) plot(x,y, '*r') xlabel('Depth'), ylabel('Concentration')
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...
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);...
I'm trying to solve this differential equations by using matlab. But I don't know the reason why I can't ge...
I'm trying to solve this differential equations by using
matlab. But I don't know the reason why I can't get the solutions.
I've attached matlab code and few differential equation. Please
find a the way to solve this problem.
second oder ode2.m x+ function, second-oder-ode2 t-0:0.001:30 initial-x = 0; initial-dxdt = 0: lt.影=ode45( @rhs, t, [initial.x initial.dxdt ] ); plot(t.(:,1l): xlabel( t); ylabel(x): 申 function dxdt=rhs( t, x) dxdt-1 =x(2); dxdt-2 (-50 x(2)+61.25+((1-cos(4 pi 10 t))/2) (47380 x(1)-3-7428 x(1) 2...
I'm trying to solve this problem by using matlab. But I don't know reason why I can't get the solutions. I w...
I'm
trying to solve this problem by using matlab. But I don't know
reason why I can't get the solutions. I wanna get a plot of this
differential equation. Please find a way how to solve this problem.
May there're errors in the code. Please check it.
second-oder-ode2.m x 曱function, second-oder-ode2 t=0:0.001 :30; initial-× = 0; in i t i al-dxdt 0; lt,影=ode45( @rhs, t. [initial.x initial-dxdt ] ); plot( (:, 1) ) ; xlabel( 't); ylabel(): function dxdt=rhs( t,...
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;...
Project in matlab. I have the correct ak value but not the correct ao value. My code is attached ...
Project in matlab. I have the correct ak value but not the
correct ao value. My code is attached below also
2. Determine and plot the magnitude and phase spectrum of the Fourier series coefficients a, that is, plot ja, I as a function of discrete frequencies Jok and La, as a function of discrete frequencies fok 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;...
Hi I need help understanding this matlab code. Can you add comments or at least state what the lines in this code are doing. Thanks! close all; clear all;clc; t=1:0.025:5; desired=5*sin(2*3.*t); noi...
Hi I need help understanding this matlab code. Can you add comments or at least state what the lines in this code are doing. Thanks! close all; clear all;clc; t=1:0.025:5; desired=5*sin(2*3.*t); noise=5*sin(2*50*3.*t); refer=5*sin(2*50*3.*t+ 3/20); primary=desired+noise; subplot(4,1,1); plot(t,desired); ylabel('desired'); subplot(4,1,2); plot(t,refer); ylabel('refer'); subplot(4,1,3); plot(t,primary); ylabel('primary'); order=2; mu=0.005; n=length(primary) delayed=zeros(1,order); adap=zeros(1,order); cancelled=zeros(1,n); for k=1:n, delayed(1)=refer(k); y=delayed*adap'; cancelled(k)=primary(k)-y; adap = adap + 2*mu*cancelled(k) .* delayed; delayed(2:order)=delayed(1:order-1); end subplot(4,1,4); plot(t,cancelled); ylabel('cancelled');
Reproduce Figures 9.2b and 9.2c on MATLAB, assuming that the
square wave (Figure 9.2b) is a periodic symmetric square wave of
normalized amplitude (A=1). Each student group should
decide the power spectral density level of the channel noise.
Compute the Fourier transform of the periodic square wave.
clear all
close all
%%%%
T=12*pi; %number of period
x=linspace(0,T);
t=x/pi
y0=square(x); %square wave signal
y0ft=fft(y0); %calculating Fourier Transformof signal
y0fts=fftshift(y0ft);
y0ftFinal=abs(y0ft);
AWGN= rand(size(x)); %Calculating whit noise
Att=(1/3);
nSig= Att*AWGN;
y=y0+nSig; %Square wave...
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);...
I'm trying to solve this differential equations by using
matlab. But I don't know the reason why I can't get the solutions.
I've attached matlab code and few differential equation. Please
find a the way to solve this problem.
second oder ode2.m x+ function, second-oder-ode2 t-0:0.001:30 initial-x = 0; initial-dxdt = 0: lt.影=ode45( @rhs, t, [initial.x initial.dxdt ] ); plot(t.(:,1l): xlabel( t); ylabel(x): 申 function dxdt=rhs( t, x) dxdt-1 =x(2); dxdt-2 (-50 x(2)+61.25+((1-cos(4 pi 10 t))/2) (47380 x(1)-3-7428 x(1) 2...
I'm
trying to solve this problem by using matlab. But I don't know
reason why I can't get the solutions. I wanna get a plot of this
differential equation. Please find a way how to solve this problem.
May there're errors in the code. Please check it.
second-oder-ode2.m x 曱function, second-oder-ode2 t=0:0.001 :30; initial-× = 0; in i t i al-dxdt 0; lt,影=ode45( @rhs, t. [initial.x initial-dxdt ] ); plot( (:, 1) ) ; xlabel( 't); ylabel(): function dxdt=rhs( t,...
Project in matlab. I have the correct ak value but not the
correct ao value. My code is attached below also
2. Determine and plot the magnitude and phase spectrum of the Fourier series coefficients a, that is, plot ja, I as a function of discrete frequencies Jok and La, as a function of discrete frequencies fok 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;...
Most questions answered within 3 hours.
-
A student measures the following data in a calorimetry
experiment designed to determine the specific heat...
asked 10 minutes ago -
1) 2H2O(g) → 2H2 (g) + O2 (g) DH = 483.6 kJ
If 5 moles of...
asked 15 minutes ago -
Suppose that Alicia has $30,000 in invested as follows: $10,000
in TJX Cos., $15,000 in Macy’s,...
asked 29 minutes ago -
Volunteer Pharmaceuticals (VP) wants to set aside money in the
R&D fund to seek supplemental drug...
asked 30 minutes ago -
What is precedent?
an order by the court.
the power of a court to overrule a...
asked 36 minutes ago -
Classify the tonicity of a solution made by dissolving 12mg of
sodium chloride in 1.0mL of...
asked 42 minutes ago -
Consider the equilibrium reaction: 2A (aq) + 3B (aq) <-->
C (aq) (in my notation <-->...
asked 43 minutes ago -
A recent poll found that 21% of a random sample of 1200 people
lost jobs due...
asked 49 minutes ago -
Indicate whether aqueous solutions of the following substances
contain ions. If so, write formulas for the...
asked 45 minutes ago -
Include at least one psychology theory, model or concept
discussed in Chapter 1, 2 or the...
asked 55 minutes ago -
Need help in drawing out a map pathway of pentose phosphate
pathway and pyruvate dehydrogenase/citric acid...
asked 1 hour ago -
Question 1
At the end of Year 6,
South Co.'s tax department estimates that they will...
asked 1 hour ago