2D Multiwall model

A fast implementation of the Multiwall model

Description

Compute 2D - MultiWall model
 
Usage
------
 
rs_amp = multiwall_model(TXpoint , RXpoint , walls , material , [L0] , [n]);
 
 
Inputs
-------
 
TXpoint Transmitter points (2 x Nt)
RXpoint Receiver points (2 x Nr)
walls Walls (4 x nwall)
material Material (2 x nwall)
L0 Reference loss value at 1m (L0 = 40.2 default)
n Power decay factor (n = 2 default)
 
Outputs
-------
 
rs_amp Total power (Nt x Nr)

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.5 (R2007b)
• Other requirements: A C compiler. You may need to recompile the mex file on your own plateform. Please find instructions in the *.c file
• Other Files: multiwall_model.c, ; multiwall_model.dll, ; test_multiwall_model.m, ; data_mw.mat

[sas sulaiman]

hi
please how i make the (data_mw), the file appeare as winap medea player file.can you clear me that?

so thanks.

[Sebastien Paris]

I don't understand your question. You have just to run the demo file 'test_multiwall_model.m'. data_mw is matlab data file. You can load it with the command load.

[Bing]

Hello,
there is a problem,
??? Undefined function or variable 'getpts'.

Error in ==> test_multiwall_model at 27
[x , y] = getpts;

pls help,thank u

[Sebastien Paris]

Ok, the getpts function is from the image processing toolbox. There are plenty of similar functions in the FEX.

[Mohd Sharim]

Hello Mr. Sebatien Paris,

I'm interested with the 2D Multiwall Model. Here Im just curious about the reference value and power factor decay that you used. May I know which propagation model that you referred for both of the values.

Thank You,

sincerely Yours,

Sharim

[Sebastien Paris]

Please open the *.c file and find the quoted reference.

[Mohd Sharim]

Hello Mr. Sebastien Paris,

Thank you for your help regarding to my last question. Now I need your help to study path loss characteristic in 2D database. Here I got a 2D database. When I tried to load the database base using 'imread' command and then load the file in your multiwall model, MATLAB unable to load the file. So, if you have any idea regarding to this post, please help me Sir.

Thank You,

Sincerely Yours,

Sharim

[Mohd Sharim]

Hello Sir,

Can you please explain me for the usage of the .mw* file in MATLAB. Thanks