LINC-NIRVANA多共轭自适应光学系统的数控矩阵旋转
Numerical control matrix rotation for the LINC-NIRVANA Multi-Conjugate Adaptive Optics system
摘要：
LINC-NIRVANA将实现大型双目望远镜的干涉成像焦点站。双层定向多共轭自适应光学系统辅助干涉仪的两臂，提供高阶波前校正。为了平衡场旋转，用于两个地波-波前传感器的机械去旋器和用于中高层传感器的光学去旋器固定焦平面相对于波前传感器上的金字塔的位置。去旋转引入波前传感器上的光瞳图像旋转：可变形反射镜在传感器上的投影因此改变。将通过新矩阵的数值计算实时应用控制矩阵的适当调整。在本文中，我们调查的时间和计算方面的瞳孔旋转，明确计算波前误差，可能会产生。
英文摘要：
LINC-NIRVANA will realize the interferometric imaging focal station of the Large Binocular Telescope. A double Layer Oriented multi-conjugate adaptive optics system assists the two arms of the interferometer, supplying high order wave-front correction. In order to counterbalance the field rotation, mechanical derotation for the two ground wave-front sensors, and optical derotators for the mid-high layers sensors fix the positions of the focal planes with respect to the pyramids aboard the wave-front sensors. The derotation introduces pupil images rotation on the wavefront sensors: the projection of the deformable mirrors on the sensor consequently change. The proper adjustment of the control matrix will be applied in real-time through numerical computation of the new matrix. In this paper we investigate the temporal and computational aspects related to the pupils rotation, explicitly computing the wave-front errors that may be generated.
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