Error on transmitting image simulink [MODEL INCLUDED]

Hi,

I'm creating a simulink scheme to transmit an image through QAM modulation. However, I get this error:

Cannot propagate 3-D signal from 'Output Port 1' of block 'ImageQAM_2023/Image From File' to 'Input Port 1' of block 'ImageQAM_2023/Integer to Bit Converter'. The latter block does not accept signals with greater than 2 dimensions (either entirely or in its current configuration). Here is my scheme. Any clue? Thanks

UPDATED (23/2/2023): I've uploaded the model and an image to check.

Answer 1

[Walter Roberson]

Your image is rgb but the downstream cannot handle rgb. You will need to convert to gray or convert to pseudocolor or reshape to be same number of rows but 3 times as many columns

[Raúl Parada Medina]

Thank you. I've converted the image from RGB to monochrome BMP and I receive these errors:

Error in 'ImageQAM_2023/Integer to Bit Converter': Multichannel operation is not supported.

Error in port widths or dimensions. 'Output Port 1' of 'ImageQAM_2023/Image From File' is a [150x150] matrix.

I cannot find solutions to the above errors. Please, some help. Thanks

[Walter Roberson]

I guess you will need to use a reshape block to convert it into a vector.

[Raúl Parada Medina]

Great! I could solve that issue, however, I don't know why the Error Rate Calculation block launches an error:

I guess something I'm missing.

[Walter Roberson]

Have you configured a solver block for the entire model, and set it to discrete time?

[Raúl Parada Medina]

I guess it is a solver configuration block. Where should I connect it and how to configure it? It is the first time I use this block.

[Walter Roberson]

https://www.mathworks.com/help/simulink/ug/choose-a-solver.html

It looks like (one) way to configure the solver is https://www.mathworks.com/help/simulink/ug/use-auto-solver-to-select-a-solver-1.html

[Raúl Parada Medina]

Thank you. I've tried auto and configured a fixed step size e.g. 0.1, however, I get this error: All sample times for the Constellation Diagram block must be discrete. Continuous and infinite sample times are not allowed.

[Walter Roberson]

Please attach your model so someone can examine in more detail to figure out where the continuous parts are arising.

[Raúl Parada Medina]

Done! Thanks