Current research on infrared simulation often focuses mainly on infrared imaging simulation by computer and pays
little attention to outdoor simulation of infrared radiation characteristics of targets. In order to simulate infrared radiance
of targets outdoors, in this paper we propose a new outdoor simulation method on the basis of heating the cloth by
electricity. There are two major contributions in the paper. Firstly, uneven distributing of temperature field of the cloth
surface is considered and the long-wave thermal imager is used as a link of the temperature control system. On the basis
of many experiments, the expression is concluded about the relation of the temperature obtained by the lone-wave
thermal imager and the temperature obtained by the temperature control system and the environmental temperature at the
experimental scene. Secondly, the influence of the environment at the experimental scene on the infrared radiance of the
cloth surface is thought over. Thanks to two measures above, simulation precision of infrared radiance is made much
better. The results of many outdoor experiments demonstrate the performance of the proposed approach.
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