The Model Of Infrared Radiation Characteristic Of Urban Buildings And Its Application In Scene Simulation

Infrared scene simulation is widely used in the infrared research and technology, the accuracy of the simulation results are directly affected by the infrared radiation characteristic of buildings.In this paper, the model of infrared radiation characteristics of building and its implementation in scene simulation are studied. Firstly, the geometric models of city buildings are built. Secondly, the influence factors of heat transfer of building surface are discussed. A heat balance equation for building surface is then established. And the temperature of building surface can be calculated under a variety of weather conditions. Thirdly, the temperature and parameters of the building surface are stored in a texture. Finally, the distribution of the surface radiation can be calculated by Planck's equation in the scene render stage. And the infrared radiation in front of the optical system can be obtained.