a soldier carries a weapon on which a laser device is mounted , which is used for illuminating a harness device on the body of another soldier . this harness device is provided with sensors , which perform detection tasks for several applications in connection with arbitrary simulation scenarios in the course of exercises and battles . the laser device has a laser target illumination element which is designed for transmitting tightly bundled laser beams , as well as chopper means for transmitting laser beams which are not only coded , but also chopped at a predeterminable frequency . the sensors contain tuning means for obtaining an alternating electrical signal from the received chopped laser beams , which is supplied to a pre - amplifier connected upstream of a discriminator . a very sensitive laser identification system results due to the fact that the electrical signal obtained in this manner can be very strongly amplified .