CAJ | 학술논문

在星载光学遥感器设计过程中，利用计算机仿真技术模拟遥感器成像过程能够评估遥感系统设计可行性，并预测遥感器成像能力。针对高分辨率星载光学遥感器成像特点，提出一种基于低空遥感系统的成像仿真方法。以低空宽视场和多光谱图像数据为基础，利用图像分类、分类拟合等方法生成低空多光谱宽视场仿真图像，采用经验线性法进行反射率反演，结合星载光学遥感器空间分辨率、MTF、光谱响应等特性以及大气辐射传输理论得到遥感器入瞳处辐亮度仿真图像。将QuickBird卫星作为仿真对象，开展成像仿真实验，并评价仿真精度。实验结果表明仿真图像与卫星图像保持较高相似程度。
재성재광학요감기설계과정중，이용계산궤방진기술모의요감기성상과정능구평고요감계통설계가행성，병예측요감기성상능력。침대고분변솔성재광학요감기성상특점，제출일충기우저공요감계통적성상방진방법。이저공관시장화다광보도상수거위기출，이용도상분류、분류의합등방법생성저공다광보관시장방진도상，채용경험선성법진행반사솔반연，결합성재광학요감기공간분변솔、MTF、광보향응등특성이급대기복사전수이론득도요감기입동처복량도방진도상。장QuickBird위성작위방진대상，개전성상방진실험，병평개방진정도。실험결과표명방진도상여위성도상보지교고상사정도。
In the designing process of the satellite borne optical remote sensor, the technology of remote sensor imaging simulation can assess the feasibility of remote sensing system designing, and predict the imaging capability of the remote sensor. A high-resolution satellite borne optical remote sensor imaging simulation method was presented, which was based on the low-altitude remote sensing system. The data sources of the simulation were low-altitude wide-field image and multi-spectral image. Firstly, low-altitude multi-spectral wide field of simulation image was generated by image classification and classification fitting. Secondly, the ground surface reflectance image was calculated by the empirical linear method. Thirdly, the satellite borne optical remote sensing radiances image of sensors was simulated by the characteristics of spatial resolution, MTF, spectral response and atmospheric radiation transmission. The QuickBird satellite was used as a simulated object, the simulation experiment was operated, and the simulation precision was assessed. According to the experimental results, there is a high similarity between the simulation image and satellite image.