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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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