Papers › A Spatiotemporal Multi-Channel Learning Framework for Automatic Modulation Recognition
A Spatiotemporal Multi-Channel Learning Framework for Automatic Modulation Recognition
Jialang Xu, Chunbo Luo, Gerard Parr, Yang Luo
Automatic modulation recognition (AMR) plays a vital role in modern communication systems. This letter proposes a novel three-stream deep learning framework to extract the features from individual and combined in-phase/quadrature (I/Q) symbols of the modulated data. The proposed framework integrates one-dimensional (1D) convolutional, two-dimensional (2D) convolutional and long short-term memory (LSTM) layers to extract features more effectively from a time and space perspective. Experiments on the benchmark dataset show the proposed framework has efficient convergence speed and achieves improved recognition accuracy, especially for the signals modulated by higher dimensional schemes such as 16 quadrature amplitude modulation (16-QAM) and 64-QAM.
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