This paper aims to find an automatic solution for the modulation’s classification of different
types of radio signals by relying on Artificial Intelligence. This project is part of a long process
of Communications Intelligence looking for an automatic solution to demodulate, decode and
decipher communication signals. Our work therefore consisted in the choice of the database
needed for supervised deep learning, the evaluation of existing techniques on raw
communication signals, and the proposal of a solution based on deep learning networks
allowing to classify the types of modulation with an optimal ratio (computation time / accuracy).
We first carried out a research work on the existing models of automatic classification in order
to use them as a reference. We consequently proposed an ensemble learning approach based on
tuned ResNet and Transformer Neural Network that is efficient at extracting multi- scale
features from the raw I/Q sequence data and also considers the challenge of predicting in low
Signal Noise Ratio (SNR) conditions. In the end, we delivered an architecture that is easy to
handle and apply to communication signals. This solution has an optimal and robust
architecture that automatically determines the type of modulation with an accuracy up to 95%