強化学習による敏捷な飛行における性能と汎化の橋渡し
Bridging Performance and Generalization in Reinforcement Learning for Agile Flight
ドローンレースの強化学習において、タスク認識型スイッチングと物理情報に基づく手続き型トラック生成器を組み合わせ、テスト時適応なしでゼロショット汎化を実現するフレームワークを提案した。
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著者: Jonathan Green, Jiaxu Xing, Nico Messikommer, Angel Romero, Davide Scaramuzza
分類: cs.RO
原文アブストラクト
Autonomous drone racing is a fundamentally challenging regime for autonomous aerial robots, requiring time-optimal control while operating under persistent actuation saturation. While reinforcement learning (RL) has achieved human-level performance in this domain, current methods fail to generalize; policies trained on specific environments often crash immediately in unseen configurations. This failure reflects the intrinsic difficulty of zero-shot generalization in agile flight, arising from high-dimensional task variation and the tight coupling between safety and performance at high speeds. Existing approaches that improve generalization impose a substantial cost on flight speed: control policies must significantly degrade performance to achieve even modest levels of generalization. In this work, we propose a framework for zero-shot generalization in agile flight for RL-based drone racing. By combining task-aware switching based on learning progress with a physically informed procedural track generator, the framework produces a fast and robust generalist policy without test-time adaptation. Our method achieves strong zero-shot performance across a wide range of unseen racetracks in the real world, demonstrating a 7.4x improvement in generalization over the state-of-the-art approaches, while maintaining competitive racing speeds. We validate our method's results in both simulation and real-world settings, including a challenging vision-based, end-to-end control setting that operates without explicit state estimation, where all prior approaches fail to generalize.
