The present disclosure discloses a method for attitude control of a quadrotor UAV, comprising establishing an attitude dynamics model of the quadrotor UAV, establishing a motion equation and a state-space equation of a UAV control system, determining an LADRC-CFO, and establishing a differential tracker for reducing a system overshoot.

The present disclosure discloses a method for attitude control of a quadrotor UAV, comprising establishing an attitude dynamics model of the quadrotor UAV, establishing a motion equation and a state-space equation of a UAV control system, determining an LADRC-CFO, and establishing a differential tracker for reducing a system overshoot.

The present invention relates to an apparatus and method for capturing energy from an unmanned aircraft propeller system and utilizing the energy to charge a battery. The invention further provides for a belt drive system connected to one or more propellers of an unmanned aircraft system commonly referred to as a drone aircraft. The belt drive system may be linked to an alternator or dynamo such that a portion of the energy generated by the rotation force provided to the drive system of the propeller is captured by the alternator or dynamo. The present invention provides for a system where the rotational energy of the propellers is captured by an energy recovery system such as an alternator, dynamo or the like. The energy recovery system provides power to charge a battery which can be used to power the drive systems for the propellers, or other electronic systems.

The present invention relates to an apparatus and method for capturing energy from an unmanned aircraft propeller system and utilizing the energy to charge a battery. The invention further provides for a belt drive system connected to one or more propellers of an unmanned aircraft system commonly referred to as a drone aircraft. The belt drive system may be linked to an alternator or dynamo such that a portion of the energy generated by the rotation force provided to the drive system of the propeller is captured by the alternator or dynamo. The present invention provides for a system where the rotational energy of the propellers is captured by an energy recovery system such as an alternator, dynamo or the like. The energy recovery system provides power to charge a battery which can be used to power the drive systems for the propellers, or other electronic systems.