Method for establishing electromagnetic compatibility digital model of all-composite aircraft

The invention discloses a method for establishing an electromagnetic compatibility digital model of an all-composite aircraft. The method comprises the following steps: dividing the electromagnetic compatibility digital model of the all-composite aircraft into an all-composite aircraft shielding effectiveness model and an aircraft cabin electromagnetic interference incidence relation model; establishing an all-composite aircraft shielding effectiveness model by using the reflection loss model of the composite interface, the transmission loss model in the composite and the aircraft geometric model; and establishing an incidence relation model of electromagnetic interference in the aircraft cabin by using the parameterized model of the on-board radiation source equipment, the parameterized model of the on-board sensitive equipment and the interference power matrix of all the radiation source equipment received by the on-board sensitive equipment. According to the method, the shielding effectiveness and the cond