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Write a MATLAB program, including creating a script and a function. Download code and watch other videos at http://mathworks.com/video
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anyone else not understand any of this?
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oh thank you soo much it s exactly what i am looking for
thanks
thing is nerds are rich
I wrote the same code that he runs at 3:56, without clearing the work space and it threw me an error. Why clearing the work space helped the program to run?
Please, read the original message
@superbros15 Are you talking about Electrical Engineering or something?
How can i get MODSIM in simulink?
I started learning the MATLAB on udemy, here is a -74% coupon to the LEARN MATLAB course:
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DurhamRockerz
Yes, see information on the MATLAB Compiler.
windows xp? aw fuck yeah
How do you export your matlab programme as standalone EXE file?
Googling working+with+arrays+matlab should find you some good resources such as the “Working with Arrays” video.
Did you type clear? (¿Sabía usted escriba clear?)
I walked into my college lab to ask my MATLAB professor some questions about how to plot x,y,z contour maps, for I just started using this program 3 weeks ago. As I walked into his office, his assistant was writing a code that was ridiculous, at least to me. Three monitors connected and his code was diagonal and symmetrical; words wouldn’t give it justice.
voice sounds like bruce from family guy
@jaffey2006 Read it over, I didn’t mention anything about my intelligence, I just wanted to convey what a powerful tool matlab is and how I was amazed at what it could do.
https://iversity.org/c/13?r=2d0b4
FREE Matlab and Modeling course (MOOCS)
you can learn at the end how to model robots ,do image processing
CHECK IT OUT
A great online course (free) for Modelling and Simulation using MatLab
https://iversity.org/c/13?r=e2b6c
thank You!!
6 minutes and this guy explained all stuffs I was confused from last 6 weeks.
great work man.
@superbros15
XD
anyone know how to use the “set” function? tried reading the help but didnt understand it… thanks
how do i use matlab?
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so-so
how can get netcdf file into matlab.
how to open netcdf file by using matlab program
Yes sirs, you were right. I did the corrections with the mixing up of variables; but when I run the function “forza” continue appearing: B, b, A and ovbiusly S. It shouldn’t be only S? or perhaps is normal to see all these variables in the command window?
explain me this program
clc;
%close
all;
clear
all;
s_f=0;
q_f=0;
m=6;
T=10000;
W=0.601;
N
=2*m; %sample points N=T/Ts=T/1/2W=2TW
Base=
0.01:0.02:1;
Pf
=Base.^2; %False alarm
snr_avgdB
=10; %SNR=Ps/(N0*W)
snr_avg=
power(10,snr_avgdB/10); %db to linear snr
for
i=1:length(Pf)
Over_Num
= 0;
for
kk = 1:10000 %Monter-Carlo times
%If
Transimmting Single tone
t
= 1:N; %samples
x
= randint(1,N); %single tone, Fs=2F0
signal
= 2*x-1;%(1/snr_avg)*exp(-snr_avgdB/snr_avg); %f_lamda
Es
= sum(abs(signal.^2)); %signal average power
N01=Es/snr_avg;
sdd=
N01*W;
noise
= sdd.*randn(1,N); %Noise production
%awgn
channels
Rev_sig
= signal + noise; %received signal for detection
Th(i)
= gammaincinv(1-Pf(i),m)*2; % Lemda Threshold for given Pf(i) according to
Digham 2003
Y(i)
= sum(abs(Rev_sig.^2))./(N01*W); %accumulated received power(normalized to
noise power)
if
Y(i)>Th(i)
Over_Num
= Over_Num +1; %decide 1 or 0, present or absent
end
end
Pd_sim(i)
= Over_Num / kk; %Detection probability computation
pm_sim(i)=1-Pd_sim(i)
pd_theory(i)
= marcumq(sqrt(snr_avg),sqrt(Th(i)), m);
pm_theory(i)=1-pd_theory(i)
%Theory
results according Digham 2003 in awgn channel
%
Pd_appm(i) =
0.5*erfc((sqrt(2)*erfcinv(2*Pf(i))-snr_avg*sqrt(m))/sqrt(2+4*snr_avg));
%approximation
when m>100, chi-squre appoximate gaussion
%
for n=0:(m-2)
%
q=(1/factorial(n))*(Th(i)*l)/(2*(1+l));
%
s=(1/factorial(n))*(Th(i)/2)^(n);
%
q_f=q_f+q;
%
s_f=s_f+s;
%
end
%
pd_f(i)=(exp(-Th(i)/2)*s_f) +
(((1+l)/l)^(m-1))*((exp(-Th(i)/(2*(1+l)))-((exp(-Th(i)/2))*q_f)));
%
pm_f(i)=1-pd_f(i);
%
pm_appm(i)=1-Pd_appm(i);
end
%figure
%loglog(Pf,pd_f,’*r’,Pf,Pd_theory,’-.m’,Pf,Pd_appm,’–b’);%Complementary
ROC Curve
loglog(Pf,pm_theory,’-.r’,
Pf,pm_sim,’-.b’);
%
loglog(Pf,pm_theory,’-.b’); hold on
xlabel(‘Pf’);
ylabel(‘Pm’);
%
legend(‘Theory’,’Simulation’,’Approximation’);
The command window displays the history of the commands you entered. It does not list what variables are currently in your workspace. The workspace window does that (or type who). Typing clc will clear the command window.
Not sure what you are trying to do with your a,b,n,A,B variables. You may be mixing-up your loop index “a”, number of iterations “n” and the data variables b, A, and B.
Loving it.
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