涵盖的主题包括：几何光学射线追踪，畸变，镜头设计，孔径和停止，辐射计和光度法。
Topics covered in geometrical optics include: ray-tracing, aberrations, lens design, apertures and stops, radiometry and photometry.
主要工作如下：(1)针对辐射计通道增益不一致性引入的系统误差，研究了通道均衡失配模型，分别采用了矩匹配法和频域滤波法进行仿真。
The main content of the thesis is as follows: (1) the channel equalization mismatch model has been studied specific to the systematic errors caused by the differences of radiometer channel gain.
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