• Support PF! Buy your school textbooks, materials and every day products Here!

Matlab help needed contour plot

  • Thread starter jadelsky
  • Start date
  • #1
13
0

Homework Statement



I need to plot an electric field in some range around base station, for example in range of 200m.

EIRP=57,5dBm
G=1 for the first example
N=4


Homework Equations



E=[2*sqrt(30*N*P*G)]/r
P=10exp[(EIRP-30)/10]
EIRP=57,5dBm
G=1 for the first example
N=4


The Attempt at a Solution




[X,Y] = meshgrid(-200:.50:200,-200:.50:200);
E=520./sqrt(X.^2+Y.^2);
contour(X,Y,E);

so when i calculate the numerator it's around 520 so i just placed it directly, and in the denominator part i placed sqrt(X.^2+Y.^2) so it's the result for any distance from the station in this range from 0 to 200...the result i get is not good, i used contour plot, i'm really not that familiar with plotting in matlab so this is the first option i thought will work (maybe there are better options?)...in the attached file i made a snapshot of my result and the result of some other example...my result should look something like that...

I would appreciate any help very much...Thanks!
 

Attachments

Answers and Replies

  • #2
13
0
and also i should include G (gain) in the equation so it all don't come out symetric but i got no idea how should i do it...
 

Related Threads on Matlab help needed contour plot

  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
7
Views
20K
Replies
1
Views
5K
Replies
1
Views
2K
  • Last Post
Replies
3
Views
6K
  • Last Post
Replies
18
Views
4K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
810
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
10
Views
10K
Top