US 12,072,364 B2
Aviation system
Hiroyuki Tsubata, Tokyo (JP); Hiromitsu Miyaki, Tokyo (JP); and Takao Okada, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP); and JAPAN AEROSPACE EXPLORATION AGENCY, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP); and JAPAN AEROSPACE EXPLORATION AGENCY, Tokyo (JP)
Filed on Feb. 11, 2022, as Appl. No. 17/669,833.
Claims priority of application No. 2021-045045 (JP), filed on Mar. 18, 2021.
Prior Publication US 2022/0299552 A1, Sep. 22, 2022
Int. Cl. G01R 29/08 (2006.01)
CPC G01R 29/0878 (2013.01) [G01R 29/0807 (2013.01); G01R 29/0842 (2013.01); G01R 29/0892 (2013.01)] 8 Claims
OG exemplary drawing
 
1. 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.