Using hNRDownlinkEvm function to perform EVM on captured 5G waveform.

Hi,

I'm using the 5G toolbox to generate a 5G waveform and using a transceiver to both transmit and receive the waveform. I'd like to perform an EVM on the received waveform, which I have in IQ format.

I was trying to follow the following guide: https://www.mathworks.com/help/instrument/5g-nr-waveform-acquisition-and-analysis.html#responsive_offcanvas. However, I am not able to use the function hNRDownlinkEVM , and I cannot find it in any of the files in my MATLAB directory (I get the "Unrecognized function or variable" error). Where can I find/get access to this function?

For reference, I'm using R2021b.

Thanks,

Aman

Answer 1

[Swaraj]

Hi Aman,

The documentation link you are following is for the release of R2023b. Below is the link to the same documentation page for the R2021b release.

https://in.mathworks.com/help/releases/R2021b/instrument/5g-nr-waveform-acquisition-and-analysis.html#responsive_offcanvas.

As I can check, the function 'hNRDownlinkEVM' is not available on the R2021b release documentation page causing the Unrecognized function or variable" error.

Hope it helps!