How to combine propagationData data types?

Hello everyone,

I would like to ask you for help regarding the propagationData in Antenna Toolbox. I have multiple propagationData from multiple radars. Can I please somehow combine them and them visualise them using contour command?

PS: I have tried command "add" which should work with propagation models, but does not.

Thank you

Michal Černý

Answer 1

[Ayush Modi]

Hi Michal,

The "propagationData" datatype variables do not have a built-in method for merging.

As a workaround, you can manually concatenate each field from data property of "propagationData" datatype variables. Here is an example to demonstrate how you can achieve this using "propagationData" function:

% Assuming pd1 and pd2 are two propagationData variables
Latitude = [pd1.Data{:,1}; pd2.Data{:,1}]; % Concatenate Latitude
Longitude = [pd1.Data{:,2}; pd2.Data{:,2}]; % Concatenate Longitude
mData = [pd1.Data{:,3}; pd2.Data{:,3}]; % Concatenate the data
tbl = table(Latitude, Longitude, mData); 
newpd = propagationData(tbl);

% Once merged, you can visualise the merged data using "contour" function.
contour(newpd,"LegendTitle","TitleName");

Note - Data you're merging must be compatible. Otherwise, you will need data specific operations for concatenating them.

Please refer to the following MathWorks documentation for more information on:

• propagationData datatypes: https://www.mathworks.com/help/antenna/ref/propagationdata.html
• contour function: https://www.mathworks.com/help/comm/ref/contour.html

Hope this helps!