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首页> 外文会议>Conference on Optical, Infrared, and Millimeter Space Telescopes >Optical modeling activities for the James Webb Space Telescope (JWST) project: II. Determining image motion and wavefront error over an extended field of view with a segmented optical system
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Optical modeling activities for the James Webb Space Telescope (JWST) project: II. Determining image motion and wavefront error over an extended field of view with a segmented optical system

机译：詹姆斯韦伯太空望远镜（JWST）项目的光学建模活动：II。在具有分段光学系统的扩展视野下确定图像运动和波前误差

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This is the second of a series on the optical modeling activities for the JWST government systems engineering integrated modeling team. Starting with the linear optical model discussed in the first installment, we develop centroid and wavefront error sensitivities for the special case of a segmented optical system such as JWST, where the primary mirror consists of 18 individual segments. Our approach extends standard sensitivity matrix methods used for systems consisting of monolithic optics, where the image motion is approximated by averaging ray coordinates at the image and residual wavefront error is determined with global tip/tilt removed. We develop an exact formulation using the linear optical model, and extend it to cover multiple field points for performance prediction at each instrument aboard JWST. This optical model is then driven by thermal and dynamic structural perturbations in an integrated modeling environment. Results are presented.
机译：这是JWST政府系统工程综合建模团队的光学建模活动中的第二个系列。从第一期中讨论的线性光学模型开始，我们为分段光学系统（如JWST）的特殊情况开发质心和波前误差敏感性，其中主镜由18个单独的段组成。我们的方法扩展了用于由单片光学组成的系统的标准灵敏度矩阵方法，其中通过在图像上的平均射线坐标近似图像运动，并且通过全局尖端/倾斜确定残差波前误差。我们使用线性光学模型开发精确的配方，并将其扩展以覆盖在JWST的每个仪器上覆盖多个场景以进行性能预测。然后通过集成建模环境中的热和动态结构扰动驱动该光学模型。结果是出现的。

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