Aviation system

An aviation system comprising:

• electric field sensors;
• and
• a ground system including a computer configured to communicate with each of the electric field sensors,
• wherein the computer is configured to:
• acquire electric field intensities from the electric field sensors respectively, and generate a first electric field distribution on a ground surface based on the electric field intensities;
• derive a matrix, the first electric field distribution on the ground surface being derived by multiplying the matrix by electric charges temporarily set on a horizontal plane at a predetermined altitude;
• derive a pseudo inverse matrix of the matrix;
• derive an electric charge distribution on the horizontal plane by multiplying the pseudo inverse matrix by the first electric field distribution on the ground surface;
• and
• derive a second electric field distribution on a flight path of an aircraft based on the electric charge distribution,
• further comprising a flight control system including another computer configured to change an attitude of the aircraft according to a direction of the second electric field distribution on the flight path of the aircraft to reduce influence of a lightning strike on the aircraft.