Target characteristic changing method and device of hidden corner reflector and hidden corner reflector

The invention relates to the technical field of corner reflectors, and discloses a target characteristic changing method of a hidden corner reflector. The target characteristic change method of the hidden corner reflector comprises the following steps: obtaining a preset RCS regulation and control quantity value delta; the transmissivity alpha of the electromagnetic wave pass resistance regulation and control material is obtained; and the size of the corner reflector array is determined according to the regulation and control quantity value delta and the transmissivity alpha, so that the RCS of the corner reflector array in the horizontal direction is greater than or equal to a preset value. By adopting the target characteristic change method of the hidden corner reflector, after the corner reflector is arranged on the surface of the object for disguising, disguising is not easy to find by optical means. The invention further discloses a target characteristic changing device of the hidden corner reflector and