학술논문

AESA Adaptive Beamforming Using Deep Learning
Document Type
Conference
Source
2020 IEEE Radar Conference (RadarConf20) Radar Conference (RadarConf20), 2020 IEEE. :1-6 Sep, 2020
Subject
Aerospace
Geoscience
Signal Processing and Analysis
Antenna arrays
Antenna radiation patterns
Radar antennas
Optimization
Arrays
Adaptive arrays
Linear antenna arrays
Deep learning
Convolutional neural networks
Adaptive Beamforming
Null-forming
Antenna Array
Antenna Array Synthesis
reconfigurability
Language
ISSN
2375-5318
Abstract
In this work we propose a method for the adaptive beam-forming of an antenna array using Deep Learning. The proposed method is based on a deep Convolutional Neural Network that takes as input an image-like radiation pattern encoding the desired behavior and computes the optimal currents needed to adapt the antenna to the new beam specification. The proposed approach drastically reduces the computation time (up to 1700×) introducing a smart mapping of a classic iterative algorithm to an antenna to reproduce it. After training the model is able to compute optimal currents successfully in a single forward pass, avoiding the need of expensive iterative optimizations to find the needed currents.