Papers › Multitask Reinforcement Learning for Quadcopter Attitude Stabilization and Tracking...
Multitask Reinforcement Learning for Quadcopter Attitude Stabilization and Tracking using Graph Policy
Yu Tang Liu, Afonso Vale, Aamir Ahmad, Rodrigo Ventura, Meysam Basiri
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Quadcopter attitude control involves two tasks: smooth attitude tracking and aggressive stabilization from arbitrary states. Although both can be formulated as tracking problems, their distinct state spaces and control strategies complicate a unified reward function. We propose a multitask deep reinforcement learning framework that leverages parallel simulation with IsaacGym and a Graph Convolutional Network (GCN) policy to address both tasks effectively. Our multitask Soft Actor-Critic (SAC) approach achieves faster, more reliable learning and higher sample efficiency than single-task methods. We validate its real-world applicability by deploying the learned policy - a compact two-layer network with 24 neurons per layer - on a Pixhawk flight controller, achieving 400 Hz control without extra computational resources. We provide our code at https://github.com/robot-perception-group/GraphMTSAC\_UAV/.
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