unable to resolve the name pskModulat​ion.conste​llation

I was playing around with the LLRNeuralNetworkExample code and was trying out the DVB-S.2 example seperately. I tried to use the PSK modulation rather than the default 16APSK modulation given in the example.

I did not change much in the default code except for the following:

subsystem type = '8PSK 3/5'

EsNo values = 5.1:0.1:5.4

hiddenlayer size = 8

I keep getting the error "unable to resolve the name pskModulation.constellation" when i try to train the network. I dont know what I'm doing wrong. Any pointers on what I could do to resolve the error message?

Answer 1

[ag]

Hi Priscilla,

I understand that you are facing issue with the LLRNeuralNetworkExample in R2021b, after modifying "subsystem type", "EsNo", "hiddenlayer size".

Unfortunately, I am not able to reproduce your issue on my end, both before and after introducing your change in the code, and the code runs without any errors.

Please check if you are having all the required files in the same directory(or on the path) and the "Communication toolbox" and "Deep Learning toolbox" installed, before running the example.

The required files, and the example can be accessed using the below command-

openExample('deeplearning_shared/LLRNeuralNetworkExample')

For more details, please refer to the following product pages:

• https://www.mathworks.com/products/communications.html
• https://www.mathworks.com/products/deep-learning.html

Hope this helps!

Best Regards,

Aryan Gupta