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大视场高精度紫外地球模拟器光学系统设计

Journal of Changchun University of Science and Technology(2020)

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Abstract
静态紫外地球模拟器通过性能测试和精度标定,对紫外地球敏感器自身姿态测量的精度起决定性作用.结合静态紫外地球模拟器的组成与工作原理,分析并选取了七片透镜组作为初始结构;结合地球模拟器光学系统的技术要求,分析确定了畸变的像差容限,利用ZEMAX软件对静态紫外地球模拟器光学系统进行优化,并分别对40°和17.46°的视场角进行像质评价,经优化后的光学系统最大场曲约为0.12 mm,相对畸变小于0.25%,平行度误差优于9.4″,视场角为40°和视场角为17.46°时地球张角误差分别为0.016391°和0.01651°,对实现卫星高精度自主导航具有一定的现实意义.
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