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首页> 外文期刊>International Journal of Wildland Fire >Generation of synthetic infrared remote-sensing scenes of wildland fire
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Generation of synthetic infrared remote-sensing scenes of wildland fire

机译:生成野火的合成红外遥感场景

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摘要

We describe a method for generating synthetic infrared remote-sensing scenes of wildland fire. These synthetic scenes are an important step in data assimilation, which is defined as the process of incorporating new data into an executing model. In our case, this is a fire propagation model. The scenes are built using the surface output of fire position from a fire propagation code and prior knowledge of fire physics and behavior to estimate the shape of the flame. The scene radiance is then estimated by employing a physics-based ray-tracing model called DIRSIG to render the radiation that would reach a sensor on an airborne platform. Values of the Fire Radiated Energy calculated from the synthetic radiance scene compare well with previously published values, providing validation of the method.
机译:我们描述了一种用于生成野火的合成红外遥感场景的方法。这些综合场景是数据同化的重要步骤,数据同化被定义为将新数据合并到执行模型中的过程。在我们的案例中,这是一个火灾传播模型。使用火传播代码的火位置的表面输出以及火物理和行为的先验知识来估计火焰的形状,从而构建场景。然后,通过使用称为DIRSIG的基于物理学的光线跟踪模型来估计场景辐射,以渲染将到达机载平台上的传感器的辐射。从合成辐射场景计算出的火辐射能量值与先前发布的值进行了很好的比较,从而提供了该方法的验证。

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