How matlab calculate SINR? (Mathematically)

Hello,

How does MATLAB calculate with the SINR command and only taking the name of the antenna? What are the parameters that affect the calculation of SINR for an antenna? JUST IT'S NAME??!!

[Walter Roberson]

Are you using https://www.mathworks.com/help/antenna/ref/txsite.sinr.html (antenna toolbox) or https://www.mathworks.com/help/comm/ref/txsite.sinr.html (communications systems toolbox) or https://www.mathworks.com/matlabcentral/fileexchange/34478-sinr-calculation-in-power-control or something else?

None of those accept only the name of an antenna, so you must be looking at something else.

https://www.mathworks.com/help/phased/ug/sinr-map-for-a-5g-urban-micro-cell-test-environment.html

[Parmida]

Hi,

Thank you for your explanation. I am using https://www.mathworks.com/help/antenna/ref/txsite.sinr.html (antenna toolbox) and SINR only received tx as input (sinr(tx)). My problem is how this command calculates interference and noise. because as you know SINR is power/noise+interference.

Thanks

[Walter Roberson]

It depends on what coordinate system and propagation model is configured for the tx

You are not passing in the name of an antenna, you are passing in an object that represents a configured system of antennas.

[Parmida]

Thank you so much for your help.

Answer 1

[DGM]

The documentation for sinr is fairly descriptive. From the synopsis:

The default propagation model is Longley-Rice when terrain is enabled and free space when terrain is disabled.

It also lists the defaults for map/terrain and other parameters.