METHOD FOR OFFERING A COMPOSITE DUMMY TARGET FORMED FROM A PLURALITY OF ACTIVE MASSES WHICH EMIT SPECTRALLY DIFFERENTIATED RADIATION

In a method for offering a dummy target which simulates the target signature of a subject, such as land craft, aircraft or water craft, to an imaging, radiation-sensitive homing head such as an infrared homing head, a number of active masses are deployed at respective spatial positions, with each mass simulating a portion of the target signature of the subject by emitting spectrally differentiated radiation in the sensitivity range of the homing head. The active masses are deployed at positions to produce a three-dimensional dummy target in which sources of radiation to which the homing head is sensitive are positioned in a manner which mimics the subject.