CONTROL2026-04-14

E2E-Fly: An Integrated Training-to-Deployment System for End-to-End Quadrotor Autonomy

Fangyu Sun, Fanxing Li, Linzuo Zhang, Yu Hu, Renbiao Jin, Shuyu Wu, Wenxian Yu, Danping Zou

This paper presents a complete software and hardware system for Robot LearningTrainingThe process of fitting a model using data or experience. AI policies that Control & PlanningControlThe method used to make the robot move the way you want. quadrotor drones. Instead of hand-coding drone behaviors, the system uses Robot LearningMachine learningTraining models from data rather than programming every behavior manually. to learn Control & PlanningControlThe method used to make the robot move the way you want. policies in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. and then deploy them on real drones. Developers should care about this because it solves a major practical problem: policies trained in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. usually fail on real hardware due to differences between simulated and real physics, sensors, and timing. E2E-Fly provides a systematic solution with Data, Distributions & Training IssuesDomain randomizationChanging simulator visuals or physics during training so policies transfer better to reality., hardware-in-the-loop testing, and careful Simulation & Sim-to-RealSim-to-real (sim2real)Transferring a policy trained in simulation to a real robot. alignment techniques. This is valuable for anyone building autonomous drone applications, as it shows how to bridge the simulation-to-reality gap and demonstrates successful Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. of six different flight Control & PlanningControlThe method used to make the robot move the way you want. tasks on actual quadrotors.

ARCHITECTURE

THE PROBLEM

This paper focuses on Control & PlanningControlThe method used to make the robot move the way you want.. This paper presents a complete software and hardware system for Robot LearningTrainingThe process of fitting a model using data or experience. AI policies that Control & PlanningControlThe method used to make the robot move the way you want. quadrotor drones. Instead of hand-coding drone behaviors, the system uses Robot LearningMachine learningTraining models from data rather than programming every behavior manually. to learn Control & PlanningControlThe method used to make the robot move the way you want. policies in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. and then deploy them on real drones. Developers should care about this because it solves a major practical problem: policies trained in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. usually fail on real hardware due to differences between simulated and real physics, sensors, and timing. E2E-Fly provides a systematic solution with Data, Distributions & Training IssuesDomain randomizationChanging simulator visuals or physics during training so policies transfer better to reality., hardware-in-the-loop testing, and careful Simulation & Sim-to-RealSim-to-real (sim2real)Transferring a policy trained in simulation to a real robot. alignment techniques. This is valuable for anyone building autonomous drone applications, as it shows how to bridge the simulation-to-reality gap and demonstrates successful Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. of six different flight Control & PlanningControlThe method used to make the robot move the way you want. tasks on actual quadrotors. Read the paper by tracking the Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. definition, the Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or data assumptions, and the evidence that supports the claimed improvement.

HOW IT WORKS

1

Task framing

The paper frames the work as Control & PlanningControlThe method used to make the robot move the way you want.. Start here because it defines what success means and which assumptions the rest of the method inherits.

2

Core method

This paper presents a complete software and hardware system for Robot LearningTrainingThe process of fitting a model using data or experience. AI policies that Control & PlanningControlThe method used to make the robot move the way you want. quadrotor drones. Instead of hand-coding drone behaviors, the system uses Robot LearningMachine learningTraining models from data rather than programming every behavior manually. to learn Control & PlanningControlThe method used to make the robot move the way you want. policies in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. and then deploy them on real drones. Developers should care about this because it solves a major practical problem: policies trained in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. usually fail on real hardware due to differences between simulated and real physics, sensors, and timing. E2E-Fly provides a systematic solution with Data, Distributions & Training IssuesDomain randomizationChanging simulator visuals or physics during training so policies transfer better to reality., hardware-in-the-loop testing, and careful Simulation & Sim-to-RealSim-to-real (sim2real)Transferring a policy trained in simulation to a real robot. alignment techniques. This is valuable for anyone building autonomous drone applications, as it shows how to bridge the simulation-to-reality gap and demonstrates successful Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. of six different flight Control & PlanningControlThe method used to make the robot move the way you want. tasks on actual quadrotors. When reading the method section, identify the inputs, the learned or engineered representation, and the Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. or prediction produced by the system.

3

Data and supervision

For robotics work, the data story is part of the method: check whether the system depends on Imitation & Reinforcement LearningTeleoperation (teleop)A human remotely controlling the robot, often to collect demonstrations., Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested., internet video, human labels, or Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. rollouts.

4

Evaluation evidence

The paper should be judged through its Simulation & Sim-to-RealEvaluationMeasuring how well a robot system performs. protocol: what data is used, what Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or simulator is tested, and which Evaluation & ResearchBaselineA reference method used for comparison. comparisons support the claim. Look for the gap between the headline result and the Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. setting you would actually care about.

FIGURES

KEY RESULTS

Main contributionConceptual contribution

This paper presents a complete software and hardware system for Robot LearningTrainingThe process of fitting a model using data or experience. AI policies that Control & PlanningControlThe method used to make the robot move the way you want. quadrotor drones. Instead of hand-coding drone behaviors, the system uses Robot LearningMachine learningTraining models from data rather than programming every behavior manually. to learn Control & PlanningControlThe method used to make the robot move the way you want. policies in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. and then deploy them on real drones. Developers should care about this because it solves a major practical problem: policies trained in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. usually fail on real hardware due to differences between simulated and real physics, sensors, and timing. E2E-Fly provides a systematic solution with Data, Distributions & Training IssuesDomain randomizationChanging simulator visuals or physics during training so policies transfer better to reality., hardware-in-the-loop testing, and careful Simulation & Sim-to-RealSim-to-real (sim2real)Transferring a policy trained in simulation to a real robot. alignment techniques. This is valuable for anyone building autonomous drone applications, as it shows how to bridge the simulation-to-reality gap and demonstrates successful Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. of six different flight Control & PlanningControlThe method used to make the robot move the way you want. tasks on actual quadrotors.

WHY DEVELOPERS SHOULD CARE

This paper presents a complete software and hardware system for Robot LearningTrainingThe process of fitting a model using data or experience. AI policies that Control & PlanningControlThe method used to make the robot move the way you want. quadrotor drones. Instead of hand-coding drone behaviors, the system uses Robot LearningMachine learningTraining models from data rather than programming every behavior manually. to learn Control & PlanningControlThe method used to make the robot move the way you want. policies in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. and then deploy them on real drones. Developers should care about this because it solves a major practical problem: policies trained in Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested. usually fail on real hardware due to differences between simulated and real physics, sensors, and timing. E2E-Fly provides a systematic solution with Data, Distributions & Training IssuesDomain randomizationChanging simulator visuals or physics during training so policies transfer better to reality., hardware-in-the-loop testing, and careful Simulation & Sim-to-RealSim-to-real (sim2real)Transferring a policy trained in simulation to a real robot. alignment techniques. This is valuable for anyone building autonomous drone applications, as it shows how to bridge the simulation-to-reality gap and demonstrates successful Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. of six different flight Control & PlanningControlThe method used to make the robot move the way you want. tasks on actual quadrotors.

LIMITATIONS

The main limitation to check is whether the claimed behavior holds outside the paper's reported setup. That means testing across different Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. embodiments, scenes, objects, and data distributions.

WHAT COMES NEXT

The practical next step is independent reproduction with clear baselines, ablations, and stress tests. For a developer, the useful follow-up is to map the paper's Control & PlanningControlThe method used to make the robot move the way you want. assumptions onto a concrete Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. stack, then test the smallest version of the method that could run end to end.

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