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The "Neural Lander," is a learning-based controller that tracks the position and speed of the drone, and modifies its landing trajectory and rotor speed accordingly to achieve the smoothest possible landing, while gobbling up less power.
FURTHER READING
'Neural Lander' Uses AI to Land Drones Smoothly
 Anima Anandkumar
 Soon-Jo Chung
 Yisong Yue