passive answering for a optronische friend or foe erkennungseinrichtung

摘要

The passive response device (11) has a modulatable reflector (24) for the interrogation beam (14) of an optronic friend or foe identification device. A modulator (23) is provided for time controlled temporary lifting of the retroreflection operation of a triple reflector (13). The reflector is made up of a combination of prisms or mirrors as reflectors (24). An optical change in the total reflection may be provided at the reflector (24). A mechanical change of the angle of reflection may be provided at one of the reflectors (24). The modulator may affect the retroreflection with linear actuators acting on the reflector (24).