MATLAB: Calculate path loss

[ucreate]

Hello

I need some help with a simple MATLAB program.

Basically, I need to generate 100 samples of path loss that is distributed in 10km radius
where Path loss = 10+27log10(d) + 11db.

How should I generate the samples across the 10km radius?

I'm a beginner in MATLAB so I would appreciate any help.

Thanks

 

[Romansh]

Hi,

You need to create a vector for the distance

d=1:10:10000;

Than just put it in the equation

PathLoss=10+27*log10(d)+11;

Than create a plot:

plot(d,PathLoss);

Hope it helped,
R.

 

[ucreate]

Hello,

Thanks for your reply. I believe that I have to use another formula to generate random distance points using the Radius of 10 km and I'm not sure what the formula is.

 

[pancho_hideboo]

Uniform Random Distribution between 0km and 10km.

dmin = 0e3;
dmax = 10e3;
d = dmin + (dmax-dmin) * rand(100, 1);

 

[ucreate]

Uniform Random Distribution between 0km and 10km.

dmin = 0e3;
dmax = 10e3;
d = dmin + (dmax-dmin) * rand(100, 1);

Thanks! I believe that's what I was looking for. By the way, what is this formula called?

 

[pancho_hideboo]

Thanks! I believe that's what I was looking for.
By the way, what is this formula called?

It is not a fumula.
Simply it is a uniform distribution.

See "help rand" at MATLAB Prompt.