运动平台红外凝视场景的仿真

对空间运动载体平台上的红外凝视探测器成像仿真是深空探测红外图像信息处理算法研究的基础性工作.在传统的场景仿真中,成像弥散、相机与目标的运动对图像的影响往往被忽略,为了对红外凝视成像系统所成场景进行合理仿真,在对红外凝视成像原理和探测器自身运动、探测目标运动的动力学方程进行分析后,分别对影响红外凝视成像效果的红外成像探测器探测距离、弥散现象、成像面积、自身运动和目标运动等因素进行推导和建模,得到了红外凝视成像系统目标作用距离、弥散圆能量分布,目标成像面积以及相机运动耦合的理论表达式以解决成像平台运动时目标成像高逼真度仿真的问题.最后进行了目标运动与探测器运动条件下的场景仿真.仿真图像表明了模型的有效性.

Simulation of staring infrared scene on moving platform

In the research of deep space infrared image processing algorithms,the simulation of imaging captured by staring infrared camera on a moving platform is one of the fundamental work.In traditional simulations,the influence of image dispersion,camera motion and target motion on image are always overlooked.In order to simulate the infrared scenes resonably,the theoretical models of infrared detecting range,image dispersion,imaging size of the target and the target motion were proposed by analyzing the theory of infrared image generation,detector itself moving and the kinetic equations of targets moving in space.Furthermore,to solve the problem of high fidelity emulation on moving platform infrared imaging,the theoretical expressions of target ranging distance,imaging dispersion energy distribution,imaging area and the coupling equations of camera motion were obtained.The simulated maages of movmg targets show that these models are effective for moving target imaging on a moving infrared camera in deep space.