Control method for catapult-assisted take-off of unmanned aerial vehicle

The invention discloses a control method for catapult-assisted take-off of an unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicle control. The method comprises the steps of: firstly, enabling the unmanned aerial vehicle to be powered on for standby, all control surfaces to be kept in a neutral position, and initializing and setting take-off parameters; monitoring ground station instructions in real time, and after the instructions are received and a take-off state is entered, controlling a rocket to ignite to enter a first take-off stage; judging a ground speed and a space speed of the unmanned aerial vehicle, when the ground speed and the space speed are larger than set threshold values, indicating that ignition is successful, and entering a second stage; otherwise, indicating that ignition fails, and stopping the take-off process; then, judging the current height of the unmanned aerial vehicle in real time, after the unmanned aerial vehicle reaches the safe height, entering a third